N=input()
score=0

N=N[::-1]
for i in range(len(N)):
    score+=4**i*int(N[i])

if score%3==0 and score%5==0:
    print("FizzBuzz")
elif score%3==0:
    print("Fizz")
elif score%5==0:
    print("Buzz")
else:
    print(N[::-1])