#include <iostream>
#include <string.h>
using namespace std;
int main() {
    int n_int;
    std::string n;
    cin >> n_int;
    n=std::to_string(n_int);
    if(n[n.size()] == '2' || n[n.size()] == '4' || n[n.size()] == '5' || n['] == '7' || n[n.size()] == '9'){
          cout << "hon" << "\n";}
  else     if(n[n.size()] == '0'|| n[n.size()] == '1' || n[n.size()] == '6' || n[n.size()] == '8' ){
          cout << "pon" << "\n";}
  else     if(n[n.size()] == '3'){
          cout << "ban" << "\n";}

}
