#include <bits/stdc++.h>
using namespace std;
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) begin(v),end(v)
template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; }
template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; }
using ll = long long;
using pii = pair<int, int>;
constexpr ll INF = 1ll<<30;
constexpr ll longINF = 1ll<<60;
constexpr ll MOD = 1000000007;
constexpr bool debug = false;
//---------------------------------//

int main() {
	string N;
	cin >> N;
	int p3 = 0, p5 = 0;
	REP(i, N.size()) {
		int c = N[i] - '0';
		p3 = (p3 * 4 + c) % 3;
		p5 = (p5 * 4 + c) % 5;
	}
	if (p3 == 0 && p5 == 0) puts("FizzBuzz");
	else if (p3 == 0) puts("Fizz");
	else if (p5 == 0) puts("Buzz");
	else cout << N << endl;
}