#include <iostream>
#include <algorithm>
using namespace std;
int main(){
    string s;cin>>s;
    reverse(s.begin(),s.end());
    int mod = 15;
    int r = 1;
    int nya = 0;
    for(int i = 0; s.size() > i; i++){
        nya = (nya +r*(s[i]-'0'))%mod;
        r = (r*4)%mod;
    }
    if(!(nya%15)){
        cout << "FizzBuzz" << endl;
    }else if(!(nya % 3)){
        cout <<  "Fizz" << endl;
    }else if(!(nya % 5)){
        cout << "Buzz" << endl;
    }else{
        reverse(s.begin(),s.end());
        cout << s << endl;
    }
}