#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
#ifdef LOCAL
	std::ifstream in("in");
	std::cin.rdbuf(in.rdbuf());
#endif

	string s;
	cin >> s;

	int three = 0, five = 0;
	for(int i = s.size() - 1; i >= 0; i--){
		int n = s[i] - '0';
		three = (three * 4 + n) % 3;
		five = (five * 4 + n) % 5;
	}
	string ans;
	if(three == 0) ans += "Fizz";
	if(five == 0) ans += "Buzz";
	if(ans.size()) cout << ans << endl;
	else{
		cout << s << endl;
	}
}