#include<bits/stdc++.h>
using namespace std;
int main()
{
  int n;
  cin>>n;
  while(n!=0)
  {
    s=n%10;
    n=n/10;
  }
  if(s==0||s==1||s==6||s==8)
    cout<<"pon";
    
    if(s==2||s==4||s==5||s==7||s==9)
      cout<<"hon";
      else
        cout<<"bon";

}