N = input().rstrip()
A = 0
for i in range(len(N)):
    A += int(N[::-1][i]) * pow(4, i)

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