N = input()
l = list(N)
l.reverse()
real_num = 0

for i, l_i in enumerate(l):
    real_num += (4 ** i) * int(l_i)

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