#include <bits/stdc++.h>
#define (i,n) rep(i=0;i<=n;i++);
using namespace std;
int main(){
  int n;
  cin>>n>>endl;
    if(n%10==2 || n%10==5 || n%10==7 || n%10==9){
      cout<<"hon"<<endl;
    }
  if(n%10==0 || n%10==1 || n%10== 6 || n%10==8){
    cout<<"pon"<<endl;
  }
  if(n%10==3){
    cout<<"bon"<<endl;
  }
}