import java.util.Scanner;
class Main{
	public static void main(String[] args){
    Scanner sr = new Scanner(System.in);
    	int N = sr.nextInt();
        int f = N % 10;
        if(f==2 || f==4|| f==5 || f==7 || f==9)
        	System.out.println("hon");
        else if(f==0 || f==1 || f==6 || f==8)
        	System.out.println("pon");
        else 
        	System.out.println("bon");    
     }
} import java.util.Scanner; Scanner java.util class Main{
	public static void main(String[] args){
    Scanner sr = new Scanner(System.in);
    	int N = sr.nextInt();
        int f = N % 10;
        if(f==2 || f==4|| f==5 || f==7 || f==9)
        	System.out.println("hon");
        else if(f==0 || f==1 || f==6 || f==8)
        	System.out.println("pon");
        else 
        	System.out.println("bon");    
     }
} Main public static void main(String[] args){
    Scanner sr = new Scanner(System.in);
    	int N = sr.nextInt();
        int f = N % 10;
        if(f==2 || f==4|| f==5 || f==7 || f==9)
        	System.out.println("hon");
        else if(f==0 || f==1 || f==6 || f==8)
        	System.out.println("pon");
        else 
        	System.out.println("bon");    
     } main {
    Scanner sr = new Scanner(System.in);
    	int N = sr.nextInt();
        int f = N % 10;
        if(f==2 || f==4|| f==5 || f==7 || f==9)
        	System.out.println("hon");
        else if(f==0 || f==1 || f==6 || f==8)
        	System.out.println("pon");
        else 
        	System.out.println("bon");    
     } Scanner sr = new Scanner(System.in); sr new Scanner(System.in) int N = sr.nextInt(); N sr.nextInt() sr.nextInt sr int f = N % 10; f N % 10 N 10 if(f==2 || f==4|| f==5 || f==7 || f==9)
        	System.out.println("hon");
        else if(f==0 || f==1 || f==6 || f==8)
        	System.out.println("pon");
        else 
        	System.out.println("bon"); f==2 || f==4|| f==5 || f==7 || f==9 f==7 f==5 f==2 || f==4|| f==5 || f==7 || f==9 f==2 f 2 f==4 f 4 f==5 f 5 f==7 f 7 f==9 f 9 System.out.println("hon") System.out.println System.out System System.out "hon" if(f==0 || f==1 || f==6 || f==8)
        	System.out.println("pon");
        else 
        	System.out.println("bon"); f==0 || f==1 || f==6 || f==8 f==6 f==0 || f==1 || f==6 || f==8 f==0 f 0 f==1 f 1 f==6 f 6 f==8 f 8 System.out.println("pon") System.out.println System.out System System.out "pon" System.out.println("bon") System.out.println System.out System System.out "bon" String[] args args
import java.util.Scanner;
class Main{
	public static void main(String[] args){
    Scanner sr = new Scanner(System.in);
    	int N = sr.nextInt();
        int f = N % 10;
        if(f==2 || f==4|| f==5 || f==7 || f==9)
        	System.out.println("hon");
        else if(f==0 || f==1 || f==6 || f==8)
        	System.out.println("pon");
        else 
        	System.out.println("bon");    
     }
}