class Integer
  def to_english
    return to_english_under_1000 if self < 1000
    unit = %w[
      \  thousand million billion trillion quadrillion quintillion
    ]
    to_s.reverse.scan(/.{1,3}/).zip(unit).reduce('') do |s, (d, u)|
      d =~ /\A0+\z/ ? s : [d.reverse.to_i.to_english_under_1000, u, s] * ' '
    end.strip
  end
 
  def to_english_under_1000
    a, b = divmod(100)
    s = b.to_english_under_100
    return s if self < 100
    a.to_english_under_20 + ' hundred' + (b.zero? ? '' : ' ' + s)
  end
 
  def to_english_under_100
    return to_english_under_20 if self < 20
    a, b = divmod(10)
    d = %w[
      \  \  twenty thirty forty fifty sixty seventy eighty ninety
    ][a]
    b.zero? ? d : d + ' ' + b.to_english_under_20
  end
 
  def to_english_under_20
    %w[
      zero one two three four five six seven eight nine ten eleven
      twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen
    ][self]
  end
end
 
puts $_.to_i.to_english while gets
 

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

MAoxMzQKMTAwMDAwMAo0Mjk0OTY3Mjk1CjE4NDQ2NzQ0MDczNzA5NTUxNjE2

0
134
1000000
4294967295
18446744073709551616