#define  _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <algorithm>
#include <utility>
#include <functional>
#include <cstring>
#include <queue>
#include <stack>
#include <math.h>
#include <iterator>
#include <vector>
#include <string>
#include <set>
#include <math.h>
#include <iostream>
#include <random>
#include<map>
#include <iomanip>
#include <time.h>
#include <stdlib.h>
#include <list>
#include <typeinfo>
#include <list>
#include <set>
#include <cassert>
#include<fstream>
#include <unordered_map>
#include <cstdlib>
using namespace std;
#define Ma_PI 3.141592653589793
#define eps 0.00000001
#define LONG_INF 3000000000000000000
#define GOLD 1.61803398874989484820458
#define MAX_MOD 1000000007
#define REP(i,n) for(long long i = 0;i < n;++i)                                                                             
#define seg_size 524288
int main(){
	string s;
	cin >> s;
	int moding[2] = {};
	int multi[2] = { 1,1 };
	for (int i = s.length()-1;i >= 0;i--) {
		moding[0] += (s[i] - '0') * multi[0];
		moding[1] += (s[i] - '0') * multi[1];
		moding[0] %= 3;
		moding[1] %= 5;
		multi[0] *= 4;
		multi[1] *= 4;
		multi[0] %= 3;
		multi[1] %= 5;
	}
	int cnt = 0;
	if (moding[0] == 0) {
		cout << "Fizz";
		cnt = 1;
	}
	if (moding[1] == 0) {
		cout << "Buzz";
		cnt = 1;
	}
	if (cnt == 0) {
		cout << s << endl;
		return 0;
	}
	cout << endl;
	return 0;
}