import java.util.Scanner;
public class Main {
  public static void main(String[] args){
  Scanner input = new Scanner(System.in);
  String num = input.next();
  String inputLast = num.substring(num.length()-1);
  //System.out.println(inputLast);
    //(inputLast.equals("3")){
    //System.out.println("bon");
    //se if()
    switch(inputLast){
      case "3":
        System.out.println("bon");
        break;
      case "0":
      case "1":
      case "6":
      case "8":
        System.out.println("pon");
        break;
      default:
        System.out.println("hon");
  }
}
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz