#include<bits/stdc++.h>
using namespace std;
using Int = long long;
signed main(){
  string s;
  cin>>s;
  int x=0,y=0;
  int n=s.size();
  reverse(s.begin(),s.end());
  for(int i=0;i<n;i++){
    x+=s[i]-'0';
    y+=5+(s[i]-'0')*(1-(!(i&1))*2);
    x%=3;y%=5;
  }
  reverse(s.begin(),s.end());
  if(!x) cout<<"Fizz";
  if(!y) cout<<"Buzz";
  if(x&&y) cout<<s;
  cout<<endl;
  return 0;
}