#!/usr/local/bin/ruby
module FizzBuzz
  refine Fixnum do
    def fizzbuzz()
      fz = ''
      fz += 'Fizz' if (self % 3 == 0)
      fz += 'Buzz' if (self % 5 == 0)
      fz = self.to_s if (fz == '')
    end
  end
end

(1..30).each do |n|
  using FizzBuzz
  puts n.fizzbuzz
end