S = input()

x = 0
for c in S:
    x = 4 * x + int(c)
    x %= 15

if x % 15 == 0:
    print('FizzBuzz')
elif x % 3 == 0:
    print('Fizz')
elif x % 5 == 0:
    print('Buzz')
else:
    print(S)