object atcoder{
  def main(args: Array[String]){
    var n = scala.io.StdIn.readInt
    n.toString.last match{
      case '2'|'4'|'5'|'7'|'9' => printf("hon")
      case '0'|'1'|'6'|'8' =>printf("pon")
      case '3'=>printf("bon")
    }
  }
}
