#include <bits/stdc++.h>
int main(void) {
  int n;
  scanf("%d", &n);
  switch (n) {
    case 0:
      printf("pon\n");
      break;
    case 1:
      printf("pon\n");
      break;
    case 2:
      printf("hon\n");
      break;
    case 3:
      printf("bon\n");
      break;
    case 4:
      printf("hon\n");
      break;
    case 5:
      printf("hon\n");
      break;
    case 6:
      printf("pon\n");
      break;
    case 7:
      printf("hon\n");
      break;
    case 8:
      printf("pon\n");
      break;
    case 9:
      printf("hon\n");
      break;
  }
  return 0;
}
