import java.util.*;

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

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