def f(S, M):
    tmp = 0
    for i in range(len(S)):
        tmp = (tmp * 4 + int(S[i])) % M
    return tmp % M == 0

N = input().rstrip()
ans = ""
if f(N, 3):
    ans += "Fizz"
if f(N, 5):
    ans += "Buzz"
if ans == "":
    print(N)
else:
    print(ans)