#!/usr/bin/env ruby -w
#
# Old-school Roman numerals
# "Learn to Program" by Chris Pine, p. 76
#

def roman_numeral n
	result = ''

	result << 'M' * (n / 1000)
	n = n % 1000

	result << 'D' * (n / 500)
	n = n % 500

	result << 'C' * (n / 100)
	n = n % 100

	result << 'L' * (n / 50)
	n = n % 50
	
	result << 'X' * (n / 10)
	n = n % 10

	result << 'V' * (n / 5)
	n = n % 5

	result << 'I' * n
end

n = 0
while n <= 2000
	puts "#{n}: " + roman_numeral(n)
	n = n + 1
end