code = zip([1000,900 ,500,400 ,100,90 ,50 ,40 ,10 ,9 ,5 ,4 ,1], ["M" ,"CM","D","CD","C","XC","L","XL","X","IX","V","IV","I"])

# fonctions
def zipConversionRomain(num):
    res = []
    for d, r in code:
        while num >= d:
            res.append(r)
            num -= d
    return ''.join(res)

# programme principal -----------------------------------------------
for i in range(1, 15):
    print(i, zipConversionRomain(i))