import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        
        if(N<100){
            if(N%10 == 3){
                System.out.println("bon");
            }
            else if(N%10 == 0 ||N%10 == 1 || N%10 == 6 || N%10 == 8){
                System.out.println("pon");
            }
            
            else{
                System.out.println("hon");
            }
        }
        
        else{
            if((N%100)%10 == 3){
                System.out.println("bon");
            }
            else if((N%100)%10 == 0 ||N%10 == 1 || N%10 == 6 || N%10 == 8){
                System.out.println("pon");
            }
            
            else{
                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