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