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