def main():

    N = input()
    ans = 0
    for i in range(len(N)):
        num = int(N[i])
        target = len(N) - i - 1
        ans += num * 4 ** target

    if ans % 3 == 0 and ans % 5 == 0:
        print('FizzBuzz')
    elif ans % 3 == 0:
        print('Fizz')
    elif ans % 5 == 0:
        print('Buzz')
    else:
        print(N)

if __name__ == "__main__":
    main()