import sys
sys.set_int_max_str_digits(0)
input = sys.stdin.readline
def I():   return input().rstrip()

N = I()
L = len(N)
m3, m5 = 0, 0
for i in range(L - 1, -1, -1):
    n = int(N[i])
    m3 += n * pow(4, L - 1 - i, 3)
    m3 %= 3
    m5 += n * pow(4, L - 1 - i, 5)
    m5 %= 5

if m3 == 0 and m5 == 0:
    print('FizzBuzz')
elif m3 == 0:
    print('Fizz')
elif m5 == 0:
    print('Buzz')
else:
    print(N)