using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication6
{
    class Program
    {
        static void Main(string[] args)
        {
            //var length = c2i(RL());
            //var rl = spr(RL()).Select(x=>c2i(x)).ToList();
            var num = c2i(RL())%10;
            var ret=(num==3)?"bon":((num==0||num==1||num==6||num==8)?"pon":"hon";




            Console.WriteLine(ret);
            Console.ReadLine();
        
        }
 
        static string RL() { return Console.ReadLine().Trim(); }
        static IEnumerable<string> spr(string s) { return s.Split(' '); }
        static Int64 c2i(string c) { return Int64.Parse(c); }
        //static double c2d(string c) { return double.Parse(c); }
        static string bool2ret(bool b) { return b ? "Yes" : "No"; }
    }
}
