#include <iostream>
#include <string>
using namespace std;
int main(){
	string N;
	cin >> N;
	int M = N.size();
	int a = 0, b = 0;
	for (int i = 0; i < M; i++){
		a += N[i] - '0';
		if (i % 2 == 0){
			b += N[i] - '0';
		} else {
			b -= N[i] - '0';
		}
	}
	if (a % 3 == 0 && b % 5 == 0){
		cout << "FizzBuzz" << endl;
	} else if (a % 3 == 0){
		cout << "Fizz" << endl;
	} else if (b % 5 == 0){
		cout << "Buzz" << endl;
	} else {
		cout << N << endl;
	}
}