Решение на Седма задача от Бойко Караджов

Резултати

5 точки от тестове
0 бонус точки
5 точки общо

24 успешни тест(а)
7 неуспешни тест(а)

Код

module LazyMode

  class Agenda

    attr_reader :notes

    def initialize(notes)

      @notes = notes

    end

    def where(**named_arguments)

      result = @notes.dup

      result.select! { |note| filter(note, named_arguments) }

      LazyMode::Agenda.new(result)

    end

    private

    def filter(note, arguments)

      tag_filter(note, arguments) and text_filter(note, arguments) and

        status_filter(note, arguments)

    end

    def tag_filter(note, arguments)

      if arguments[:tag]

        note.tags.include? arguments[:tag]

      else

        true

      end

    end

    def text_filter(note, arguments)

      if arguments[:text]

        not arguments[:text].match(note.header).nil? or

          not arguments[:text].match(note.body).nil?

      else

        true

      end

    end

    def status_filter(note, arguments)

      if arguments[:status]

        note.status == arguments[:status]

      else

        true

      end

    end

  class Schedule

    attr_reader :date

    def initialize(schedule_as_string)

      @date = LazyMode::Date.new(schedule_as_string)

      @interval_in_days = parse_interval schedule_as_string

    end

    def on?(date)

      if @interval_in_days != 0

        date == @date or

          (date > @date and on?(date.add(- @interval_in_days)))

      else

        date == @date

      end

    end

    private

    def parse_interval(schedule)

      if schedule.length > "0000-00-00".length

        multiplier = schedule_multiplier schedule

        skip = schedule_skip schedule

        skip * multiplier

      else

      end

    end

    def schedule_multiplier(schedule)

      case schedule[-1]

        when 'w'

        when 'm'

        else

      end

    end

    def schedule_skip(schedule)

      extra_chars = schedule.length - "0000-00-00 +".length

      schedule[- extra_chars, extra_chars - 1].to_i

    end

  class Date

    attr_reader :year, :month, :day

    def initialize(date_as_string)

      @year = date_as_string[0, 4].to_i

      @month = date_as_string[5, 2].to_i

      @day = date_as_string[8, 2].to_i

    end

    def add(days)

      LazyMode::Date.new(to_s).add!(days)

    end

    def add!(days)

      @day += days

      normalize

      self

    end

    def to_s

      "%04d-%02d-%02d" % [@year, @month, @day]

    end

    def ==(other)

      self.nil? == other.nil? and

        @year == other.year and

        @month == other.month and

        @day == other.day

    end

    def <=>(other)

      [@year, @month, @day] <=> [other.year, other.month, other.day]

    end

    def >(other)

      (self <=> other) == 1

    end

    private

    def normalize

      if @day > 30

        @month += @day / 30

        @day = @day % 30

      end

      if @month > 12

        @year += @month / 12

        @month = @month % 12

      end

    end

  class NoteDSL

    def initialize(file, header, *tags, &block)

      @file = file

      @header = header

      @tags = tags

      @status = :topostpone

      @body = nil

      instance_eval &block

    end

    def status(value)

      @status = value

    end

    def body(value)

      @body = value

    end

    def scheduled(date_as_string)

      @schedule = LazyMode::Schedule.new(date_as_string)

    end

    def note(header, *tags, &block)

      @file.note(header, *tags, &block)

    end

    def create

      LazyMode::Note.new(file: @file, header: @header, tags: @tags,

        status: @status, body: @body, schedule: @schedule)

    end

  class Note

    attr_accessor :header, :body, :status, :tags, :schedule, :file

    def initialize(**arguments)

      @file = arguments[:file]

      @header = arguments[:header]

      @tags = arguments[:tags]

      @status = arguments[:status]

      @body = arguments[:body]

      @schedule = arguments[:schedule]

    end

    def file_name

      @file.name

    end

    def on?(date)

      @schedule.on? date

    end

    def date

      @schedule.date

    end

  class File

    attr_reader :name, :notes

    def initialize(name, &block)

      @name = name

      @notes = Array.new

      self.instance_eval &block

    end

    def note(header, *tags, &block)

      notes << LazyMode::NoteDSL.new(self, header, *tags, &block).create

    end

    def daily_agenda(date)

      LazyMode::Agenda.new(notes_on_date(date))

    end

    def weekly_agenda(date)

      result = Array.new

      (0.. 6).each do |n|

        result.concat notes_on_date(date.add(n))

      end

      LazyMode::Agenda.new(result)

    end

    private

    def notes_on_date(date)

      @notes.select { |note| note.on?(date) }

        .map { |note| occurrence(note, date) }

    end

    def occurrence(note, date)

      schedule = LazyMode::Schedule.new(date.to_s)

      LazyMode::Note.new(file: note.file, header: note.header, tags: note.tags,

        status: note.status, body: note.body, schedule: schedule)

    end

  def self.create_file(name, &block)

    LazyMode::File.new(name, &block)

Лог от изпълнението

.....F.....F..FF....FF.F.......

Failures:

  1) LazyMode LazyMode::Note can have nested notes
     Failure/Error: expect(file.notes.first.body).to eq('')
       
       expected: ""
            got: nil
       
       (compared using ==)
     # /tmp/d20160107-5693-7zu1g9/spec.rb:114:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  2) LazyMode LazyMode::Note #body can have no body
     Failure/Error: expect(file.notes.first.body).to eq('')
       
       expected: ""
            got: nil
       
       (compared using ==)
     # /tmp/d20160107-5693-7zu1g9/spec.rb:94:in `block (4 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  3) LazyMode#daily_agenda returns note scheduled with weekly repeater
     Failure/Error: expect(agenda.notes.size).to eq(1)
       
       expected: 1
            got: 0
       
       (compared using ==)
     # /tmp/d20160107-5693-7zu1g9/spec.rb:175:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  4) LazyMode#daily_agenda returns note scheduled with monthly repeater
     Failure/Error: agenda = file.daily_agenda(LazyMode::Date.new('2013-01-12'))
     SystemStackError:
       stack level too deep
     # /tmp/d20160107-5693-7zu1g9/solution.rb:98:in `initialize'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:196:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:233:in `block in notes_on_date'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:233:in `select'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:233:in `notes_on_date'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:218:in `daily_agenda'
     # /tmp/d20160107-5693-7zu1g9/spec.rb:197:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  5) LazyMode#weekly_agenda returns note scheduled with weekly repeater
     Failure/Error: expect(agenda.notes.size).to eq(2)
       
       expected: 2
            got: 1
       
       (compared using ==)
     # /tmp/d20160107-5693-7zu1g9/spec.rb:295:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  6) LazyMode#weekly_agenda returns note scheduled with monthly repeater
     Failure/Error: agenda = file.weekly_agenda(LazyMode::Date.new('2013-01-10'))
     SystemStackError:
       stack level too deep
     # /tmp/d20160107-5693-7zu1g9/solution.rb:98:in `initialize'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:104:in `new'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:104:in `add'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:196:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:233:in `block in notes_on_date'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:233:in `select'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:233:in `notes_on_date'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:224:in `block in weekly_agenda'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:223:in `each'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:223:in `weekly_agenda'
     # /tmp/d20160107-5693-7zu1g9/spec.rb:326:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  7) LazyMode#weekly_agenda returns nested notes
     Failure/Error: agenda = file.weekly_agenda(LazyMode::Date.new('2012-09-05'))
     SystemStackError:
       stack level too deep
     # /tmp/d20160107-5693-7zu1g9/solution.rb:125:in `<=>'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:125:in `<=>'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:129:in `>'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
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     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:59:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:196:in `on?'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:233:in `block in notes_on_date'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:233:in `select'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:233:in `notes_on_date'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:224:in `block in weekly_agenda'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:223:in `each'
     # /tmp/d20160107-5693-7zu1g9/solution.rb:223:in `weekly_agenda'
     # /tmp/d20160107-5693-7zu1g9/spec.rb:359:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

Finished in 0.32182 seconds
31 examples, 7 failures

Failed examples:

rspec /tmp/d20160107-5693-7zu1g9/spec.rb:98 # LazyMode LazyMode::Note can have nested notes
rspec /tmp/d20160107-5693-7zu1g9/spec.rb:88 # LazyMode LazyMode::Note #body can have no body
rspec /tmp/d20160107-5693-7zu1g9/spec.rb:163 # LazyMode#daily_agenda returns note scheduled with weekly repeater
rspec /tmp/d20160107-5693-7zu1g9/spec.rb:186 # LazyMode#daily_agenda returns note scheduled with monthly repeater
rspec /tmp/d20160107-5693-7zu1g9/spec.rb:283 # LazyMode#weekly_agenda returns note scheduled with weekly repeater
rspec /tmp/d20160107-5693-7zu1g9/spec.rb:315 # LazyMode#weekly_agenda returns note scheduled with monthly repeater
rspec /tmp/d20160107-5693-7zu1g9/spec.rb:348 # LazyMode#weekly_agenda returns nested notes

История (1 версия и 0 коментара)

Бойко обнови решението на 18.12.2015 21:35 (преди над 8 години)

+module LazyMode

+  class Agenda

+    attr_reader :notes

+    def initialize(notes)

+      @notes = notes

+    end

+    def where(**named_arguments)

+      result = @notes.dup

+      result.select! { |note| filter(note, named_arguments) }

+      LazyMode::Agenda.new(result)

+    end

+    private

+    def filter(note, arguments)

+      tag_filter(note, arguments) and text_filter(note, arguments) and

+        status_filter(note, arguments)

+    end

+    def tag_filter(note, arguments)

+      if arguments[:tag]

+        note.tags.include? arguments[:tag]

+      else

+        true

+      end

+    end

+    def text_filter(note, arguments)

+      if arguments[:text]

+        not arguments[:text].match(note.header).nil? or

+          not arguments[:text].match(note.body).nil?

+      else

+        true

+      end

+    end

+    def status_filter(note, arguments)

+      if arguments[:status]

+        note.status == arguments[:status]

+      else

+        true

+      end

+    end

+  end

+  class Schedule

+    attr_reader :date

+    def initialize(schedule_as_string)

+      @date = LazyMode::Date.new(schedule_as_string)

+      @interval_in_days = parse_interval schedule_as_string

+    end

+    def on?(date)

+      if @interval_in_days != 0

+        date == @date or

+          (date > @date and on?(date.add(- @interval_in_days)))

+      else

+        date == @date

+      end

+    end

+    private

+    def parse_interval(schedule)

+      if schedule.length > "0000-00-00".length

+        multiplier = schedule_multiplier schedule

+        skip = schedule_skip schedule

+        skip * multiplier

+      else

+      end

+    end

+    def schedule_multiplier(schedule)

+      case schedule[-1]

+        when 'w'

+        when 'm'

+        else

+      end

+    end

+    def schedule_skip(schedule)

+      extra_chars = schedule.length - "0000-00-00 +".length

+      schedule[- extra_chars, extra_chars - 1].to_i

+    end

+  end

+  class Date

+    attr_reader :year, :month, :day

+    def initialize(date_as_string)

+      @year = date_as_string[0, 4].to_i

+      @month = date_as_string[5, 2].to_i

+      @day = date_as_string[8, 2].to_i

+    end

+    def add(days)

+      LazyMode::Date.new(to_s).add!(days)

+    end

+    def add!(days)

+      @day += days

+      normalize

+      self

+    end

+    def to_s

+      "%04d-%02d-%02d" % [@year, @month, @day]

+    end

+    def ==(other)

+      self.nil? == other.nil? and

+        @year == other.year and

+        @month == other.month and

+        @day == other.day

+    end

+    def <=>(other)

+      [@year, @month, @day] <=> [other.year, other.month, other.day]

+    end

+    def >(other)

+      (self <=> other) == 1

+    end

+    private

+    def normalize

+      if @day > 30

+        @month += @day / 30

+        @day = @day % 30

+      end

+      if @month > 12

+        @year += @month / 12

+        @month = @month % 12

+      end

+    end

+  end

+  class NoteDSL

+    def initialize(file, header, *tags, &block)

+      @file = file

+      @header = header

+      @tags = tags

+      @status = :topostpone

+      @body = nil

+      instance_eval &block

+    end

+    def status(value)

+      @status = value

+    end

+    def body(value)

+      @body = value

+    end

+    def scheduled(date_as_string)

+      @schedule = LazyMode::Schedule.new(date_as_string)

+    end

+    def note(header, *tags, &block)

+      @file.note(header, *tags, &block)

+    end

+    def create

+      LazyMode::Note.new(file: @file, header: @header, tags: @tags,

+        status: @status, body: @body, schedule: @schedule)

+    end

+  end

+  class Note

+    attr_accessor :header, :body, :status, :tags, :schedule, :file

+    def initialize(**arguments)

+      @file = arguments[:file]

+      @header = arguments[:header]

+      @tags = arguments[:tags]

+      @status = arguments[:status]

+      @body = arguments[:body]

+      @schedule = arguments[:schedule]

+    end

+    def file_name

+      @file.name

+    end

+    def on?(date)

+      @schedule.on? date

+    end

+    def date

+      @schedule.date

+    end

+  end

+  class File

+    attr_reader :name, :notes

+    def initialize(name, &block)

+      @name = name

+      @notes = Array.new

+      self.instance_eval &block

+    end

+    def note(header, *tags, &block)

+      notes << LazyMode::NoteDSL.new(self, header, *tags, &block).create

+    end

+    def daily_agenda(date)

+      LazyMode::Agenda.new(notes_on_date(date))

+    end

+    def weekly_agenda(date)

+      result = Array.new

+      (0.. 6).each do |n|

+        result.concat notes_on_date(date.add(n))

+      end

+      LazyMode::Agenda.new(result)

+    end

+    private

+    def notes_on_date(date)

+      @notes.select { |note| note.on?(date) }

+        .map { |note| occurrence(note, date) }

+    end

+    def occurrence(note, date)

+      schedule = LazyMode::Schedule.new(date.to_s)

+      LazyMode::Note.new(file: note.file, header: note.header, tags: note.tags,

+        status: note.status, body: note.body, schedule: schedule)

+    end

+  end

+  def self.create_file(name, &block)

+    LazyMode::File.new(name, &block)

+  end

Програмиране с Ruby

Курс във Факултета по Математика и Информатика към СУ

Решение на Седма задача от Бойко Караджов

Резултати

Код

Лог от изпълнението

История (1 версия и 0 коментара)

Бойко обнови решението на 18.12.2015 21:35 (преди над 8 години)