#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 2e6 + 5;
const ll dt = 0;
namespace space_and_Lqy{
    void solve(){
        string s;
        cin >> s;
        ll n = s.size();
        ll mod3 = 0, mod5 = 0;
        for(int i = n - 1; i >= 0; i--){
            int d = s[i] - '0'; 
            mod3 = (mod3 + d) % 3;
            int sign = ((n - 1 - i) & 1) ? -1 : 1;
            mod5 = (mod5 + sign * d) % 5;
        }
        if(mod5 < 0) mod5 += 5;
        if(!mod3 && !mod5){
            cout << "FizzBuzz" << endl;
        }
        else if(!mod3){
            cout << "Fizz" << endl;
        }
        else if(!mod5){
            cout << "Buzz" << endl;
        }else{
            cout << s << endl;
        }
    }
};
int main(){
    ll T = 1;
    if(dt)cin >> T;
    while(T--){
        space_and_Lqy::solve();
    }
    return 0;
}