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

string s;

int main(){
  cin>>s;
  int n=(int)s.size();
  int now3=0,now5=0;
  for(int i=0;i<n;++i){
    now3*=4;
    now5*=4;
    now3+=(int)(s[i]-'0');
    now5+=(int)(s[i]-'0');
    now3%=3;
    now5%=5;
  }
  now3%=3;now5%=5;
  if(now3==0 && now5==0)cout<<"FizzBuzz"<<"\n";
  else if(now3==0)cout<<"Fizz"<<"\n";
  else if(now5==0)cout<<"Buzz"<<"\n";
  else cout<<s<<"\n";
  return 0;
}