def chmod(p, n, mod):
    tmp = 0
    for i in range(len(n)):
        tmp = (tmp * p + int(n[i])) % mod
    return True if tmp == 0 else False

N = input()
SumN = sum([int(x) for x in list(N)])

if chmod(4, N, 15):
    print('FizzBuzz')
elif chmod(4, N, 3):
    print('Fizz')
elif chmod(4, N, 5):
    print('Buzz')
else:
    print(N)