#include<iostream>
#include<algorithm>
#include<string>
#include<vector>
#include<cmath>
#include<queue>
#include<functional>
#include<map>
using namespace std;
string S, T;
int main() {
	cin >> S; T = S;
	reverse(S.begin(), S.end());
	int c = 0, d = 1;
	for (int i = 0; i < S.size(); i++) {
		c += (S[i] - '0')*d; d *= 4; d %= 15; c %= 15;
	}
	if (c == 0)cout << "FizzBuzz" << endl;
	else if (c % 3 == 0)cout << "Fizz" << endl;
	else if (c % 5 == 0)cout << "Buzz" << endl;
	else cout << T << endl;
	return 0;
}