S = input()
four = 1
N = 0
for s in S[::-1]:
    N += four * int(s)
    four *= 4

if N % 15 == 0:
    print("FizzBuzz")
elif N % 3 == 0:
    print("Fizz")
elif N % 5 == 0:
    print("Buzz")
else:
    print(S)