import java.util.Scanner;	
public class Main {
    public static void main(String[] args) throws Exception {
    Scanner stdIn= new Scanner(System.in);
    int n=stdIn.nextInt();
    int a=n%10;
    int [] hon={2,4,5,7,9};
    int [] pon={0,1,6,8};
    for(int t=0;t<hon.length;t++){
      if(a==hon[t])System.out.println("hon");
    }
    for(int t=0;t<pon.length;t++){
      if(a==pon[t])System.out.println("pon");
    }
    if(a==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