#include<bits/stdc++.h>
#include <atcoder/all>
#ifdef LOCAL
#include <debug_print.hpp>
#define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#define debug(...) (static_cast<void>(0))
#endif
using namespace atcoder;
using mint=static_modint<673>;
using namespace std;
using ll=long long;
using ul=unsigned long long;
int dx[8] = {-1, 1, 0, 0, -1, -1, 1, 1};
int dy[8] = {0, 0, -1, 1, -1, 1, -1, 1};
using Graph=vector<vector<int>>;
ll op(ll a,ll b){return max(a,b);}
ll e(){return 0;}
int main(){
    string S;
    cin>>S;
    int t=1;
    int thr=0,fiv=0;
    for(int i=S.size()-1;i>=0;i--)thr+=S[i]-'0',fiv+=(S[i]-'0')*t,t*=-1;
    if(thr%3==0&&fiv%5==0)cout<<"FizzBuzz"<<endl;
    else if(thr%3==0)cout<<"Fizz"<<endl;
    else if(fiv%5==0)cout<<"Buzz"<<endl;
    else cout<<S<<endl;
}