#include<bits/stdc++.h>
typedef long long ll;
using namespace std;
int INF = 1LL << 30;
int MOD = 1e9+7;
main(){
    string S;
    cin >> S;
    int num = 0,odd = S.size() & 1;
    for(int i = S.size()-1;i >= 0;i--){
        int n = (S[i] - '0') * (odd ^ (i&1) ? 1 : 4);
        num = (num + n) % 15;
    }
    if(num == 0)cout << "FizzBuzz" << endl;
    else if(num % 3 == 0)cout << "Fizz" << endl;
    else if(num % 5 == 0)cout << "Buzz" << endl;
    else    cout << S << endl;
}