#include <bits/stdc++.h>
int main() {
  int N;
  scanf("%d", &N);
  N %= 10;
  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("hhon\n");
      break;
    case 10:
      printf("pon\n");
      break;
  }
  return 0;
}
