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

string s;

int main(){
  cin>>s;
  int n=(int)s.size();
  ll sum=0;
  ll now=1;
  for(int i=n-1;i>=0;i--){
    sum+=now*(int)(s[i]-'0');
    now*=4;
  }
  if(sum%3==0 && sum%5==0)cout<<"FizzBuzz"<<"\n";
  else if(sum%3==0)cout<<"Fizz"<<"\n";
  else if(sum%5==0)cout<<"Buzz"<<"\n";
  else cout<<s<<"\n";
  return 0;
}