#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <stack>
using namespace std;

#define MOD (int)(1e9+7);

int main()
{
	string SN; cin >> SN;
	int N = 0;
	int is3 = 0;
	for (int i = 0; i < SN.size(); i++) {
		N *= 4;
		N += SN[i] - '0';
		is3 += SN[i] - '0';
		N %= 10;
	}

	if ((N == 0 || N == 5) && is3 % 3 == 0)cout << "FizzBuzz" << endl;
	else if (is3 % 3 == 0)cout << "Fizz" << endl;
	else if ((N == 0 || N == 5))cout << "Buzz" << endl;
	else cout << SN << endl;

	return 0;
}