## https://yukicoder.me/problems/no/593


def divisable(N, mod):
    x = 0
    for n in N:
        x *= 4
        x %= mod
        x += int(n)
        x %= mod

    return x == 0

def main():
    N = input()

    flg3 = divisable(N, 3)
    flg5 = divisable(N, 5)

    if flg3 and flg5:
        print("FizzBuzz")
    elif flg3:
        print("Fizz")
    elif flg5:
        print("Buzz")
    else:
        print(N)




    


        

    



if __name__ == "__main__":
    main()