import java.util.Scanner;

public class Main{

public static void main(String[] args) {
  Scanner scanner = new Scanner(System.in);
  String parm = scanner.next();
  
  int i = Integer.parseInt(parm)%10;
  
  if (i == 3) {
    System.out.print("bon");
  } else if(i == 0 || i == 1 || i == 6 || i == 8) {
    System.out.print("pon");
  } else {
    System.out.print("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