N = input()
l = list(N)

real_num3 = 0
real_num5 = 0

for l_i in l:

    real_num3 = ((real_num3 * 4) + int(l_i)) % 3
    real_num5 = ((real_num5 * 4) + int(l_i)) % 5

if real_num3 + real_num5 == 0:
    print("FizzBuzz")
elif real_num3 == 0:
    print("Fizz")
elif real_num5 == 0:
    print("Buzz")
else:
    print(N)