#include<iostream>
using namespace std;
int main(){
int N;
  cin>>N;
  if((N%10==2)||(N%10==5)||(N%10==7)||(N%10==9)){
cout<<"hon"<<endl;
  }else if(N%10==3){
    cout<<"<<bon"<<endl;
  }else{
cout<<"pon"<<endl;
  }
}