#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
using ll =  long long ;
using P = pair<int,int> ;
using pll = pair<ll,ll>;
constexpr int INF = 1e9;
constexpr ll LINF = 1e18;
constexpr int MOD = 1000000007;

int four(string s){
    int n = s.size();
    int base = 1;
    int res = 0;
    reverse(s.begin(),s.end());
    rep(i,n){
        int sd = ((s[i] - '0') * base)%15;
        res = (res + sd)%15;
        base = (base * 4)%15;
    }
    return res;
}

int main(){
    string s;
    cin >> s;
    int n = four(s);
    if(n%3 == 0 && n%5 ==0){
        cout << "FizzBuzz" << endl;
    }else if(n%3 ==0){
        cout << "Fizz" << endl;
    }else if(n%5 ==0){
        cout << "Buzz" << endl;
    }else{
        cout << s << endl;
    }
    return 0;
}