#include<stdio.h>

int main(void)
{
  int N;
  scanf("%d",&N);
  switch(N%10){
    case 2:
    case 4:
    case 5:
    case 7:
    case 9:
    printf("hon");
    break;
  }
  
  switch(N%10){
    case 0:
    case 1:
    case 6:
    case 8:
      printf("pon");
      break;
  }
  
  switch(N%10){
    case 3:
      printf("bon");
      break;
  }
  
  return 0;
}