N = input()
num = 0
for i, n in enumerate(N):
    num += int(n) * 4 ** i
if num % 15 == 0:
    print('FizzBuzz')
elif num % 3 == 0:
    print('Fizz')
elif num % 5 == 0:
    print('Buzz')
else:
    print(N)