import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int judge = 0;
        
        if(N%10 == 3){
                judge = 3;
        }else if(N%10 == 0 ||N%10 == 1 ||N%10 == 6 ||N%10 == 8){
                judge = 2;
        }else{
                judge = 1;
        }
        
        if(judge == 1) System.out.println("hon");
        if(judge == 2) System.out.println("pon");
        if(judge == 3) System.out.println("bon");
    }
}

/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