N = input()
M = 0
for i in range(len(N)):
    M += pow(4, i, 15) * int(N[~i])
    M %= 15
if M % 3 == 0 and M % 5 == 0:
    print('FizzBuzz')
elif M % 3 == 0:
    print('Fizz')
elif M % 5 == 0:
    print('Buzz')
else:
    print(N)