/*3.2 hightierra*/
#include <stdio.h>

int main(void){
  //変数の定義
  int N,i;
  scanf("%d",&N);
  //iにNの１の位を代入
  i = N % 10;
  
  //iの値で場合わけ
  switch(i){
    case 2:
    case 4:
    case 5:
    case 7:
    case 9:
      printf("hon");
      break;
    case 0:
    case 1:
    case 6:
    case 8:
      printf("pon");
      break;
    case 3:
      printf("bon");
      break
  }
  return 0;
}