#include <bits/stdc++.h>
using namespace std;

bool is_multiple(const int m, const string & S){
    int r = 0;
    for (char c : S){
        int v = c - '0';
        r = (r * 4 + v) % m;
    }
    return (r == 0);
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    string S;
    cin >> S;
    bool three = is_multiple(3, S);
    bool five = is_multiple(5, S);
    if (three and five){
        cout << "FizzBuzz" << endl;
    }else if (three){
        cout << "Fizz" << endl;
    }else if (five){
        cout << "Buzz" << endl;
    }else{
        cout << S << endl;
    }
    return 0;
}