import java.util.Scanner;
 
public class Main{
  public static void main(String[] args){
    Scanner stdIn=new Scanner(System.in);
    int N=stdIn.nextInt();
    int m=N%10;
    switch(m){
      case 0: System.out.println("pon"); break;
      case 2: System.out.println("hon"); break;
      case 4: System.out.println("hon"); break;
      case 5: System.out.println("hon"); break;
      case 7: System.out.println("hon"); break;
      case 9: System.out.println("hon"); break;
      case 1: System.out.println("pon"); break;
      case 6: System.out.println("pon"); break;
      case 8: System.out.println("pon"); break;
      case 3: System.out.println("bon"); break;
    }
  }
}
/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