def roman( amount ):
	romanNum = []
	symbols = (
		( 'M', 1000 ),
		( 'C', 100 ),
		( 'XC', 90 ),
		( 'L', 50 ),
		( 'X', 10 ),
		( 'IX', 9 ),
		('V', 5 ) ,
		( 'IV', 4 ),
		( 'I', 1 )
	)

	for symbol, value in symbols:
		while amount >= value:
			amount -= value
			romanNum.append( symbol )

	return ''.join( romanNum )