#include<bits/stdc++.h>
#include<cmath>
using namespace std;
int main()
{
  long long int n;cin>>n;
  if((n%10)==3)
    cout<<"bon"<<"\n";
  else if((n%10)==0 || (n%10)==1 || (n%10)==6  (n%10)==8)
    cout<<"pon"<<"\n";
  else
     cout<<"hon"<<"\n";
}