n = input()
s = 0
for i in range(len(n)):
    s += int(n[i]) * (4**(len(n)-i))
if s % 3 == 0 and s % 5 == 0:
    print("FizzBuzz")
elif s % 3==0:
    print("Fizz")
elif s % 5 == 0:
    print("Buzz")
else:
    print(n)