#include <bits/stdc++.h>
int main(void) {
  int n;
  scanf("%d", &n);
  if (n == 3)
    printf("bon");
  else if (n == 0 || n == 1)
    printf("pon");
  else if (n == 6 || n == 8)
    printf("pon");
  else
    printf("hon");
  return 0;
}
