package main

import "fmt"

func main(){
  var N int
  fmt.Scanf("%d", &N)
  n := N % 10
  
  if n == 3 {
    return "bon"
  }else if n == 0 || n == 1 || n == 6 || n == 8{
    return "pon"
  }
  return "hon"
}