N = input()
l = list(N)

real_num15 = 0
real_num3 = 0
real_num5 = 0

for i, l_i in enumerate(l):
    real_num15 = ((real_num15 * 4) + int(l_i)) % 15
    real_num3 = ((real_num3 * 4) + int(l_i)) % 3
    real_num5 = ((real_num5 * 4) + int(l_i)) % 5

if real_num15 == 0:
    print("FizzBuzz")
elif real_num3 == 0:
    print("Fizz")
elif real_num5 == 0:
    print("Buzz")
else:
    print(N)