numeral = {'one' : 1, 'two' : 2, 'three' : 3, 'four' : 4, 'five' : 5,
           'six' : 6, 'seven' : 7, 'eight' : 8, 'nine' : 9, 'ten' : 10}

with open('money.txt') as lyrics:
    for line in lyrics:
        pieces = line.split()
        for k in range(len(pieces)):
            if pieces[k].lower() in numeral:
                pieces[k] = str(numeral[pieces[k].lower()])
        print(' '.join(pieces))