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

int main() {
	string s;
	cin >> s;
	reverse(s.begin(), s.end());
	int64_t n = 0, p = 1;
	for (auto &c : s) {
		n += (c - '0') * p;
		p *= 4;
	}
	if (n % 15 == 0) {
		cout << "FizzBuzz" << endl;
	} else if (n % 3 == 0) {
		cout << "Fizz" << endl;
	} else if (n % 5 == 0) {
		cout << "Buzz" << endl;
	} else {
		reverse(s.begin(), s.end());
		cout << s << endl;
	}
	return 0;
}