#include <bits/stdc++.h>
using namespace std;
int main(){

  int N;
  cin>>N;
  
  if(N<10){
  
    if(N=0,1,6,8){
    
      cout<<"pon"<<endl;
    }
    else if(N=3){
    
      cout<<"bon"<<endl;
    }
    else{
    
      cout<<"hon"<<endl    
    }
  }
  else if(N>9&&N<100){
  
    int x;
     x=N%10
       
       cin>>x;
       if(x=0,1,6,8){
    
      cout<<"pon"<<endl;
    }
    else if(x=3){
    
      cout<<"bon"<<endl;
    }
    else{
    
      cout<<"hon"<<endl    
    }
  }
  else{
  int x=N%100;
    cin>>x;
    if(x=0,1,6,8){
    
      cout<<"pon"<<endl;
    }
    else if(x=3){
    
      cout<<"bon"<<endl;
    }
    else{
    
      cout<<"hon"<<endl    
    }
  }
    
}