import java.util.Scanner;
public class Main {

    public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
        int s = sc.nextInt();
          
switch (s % 10) { 
    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 0: System.out.println("pon");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"); 
 
    defalt:
    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