#include <math.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef unsigned long long int ull;
typedef long long int ll;
typedef long double ld;

int main(void) {
  int scan; // scanf result
  int n; // to input 

  scan = scanf("%d", &n);

  if (n % 10 == 3) {
    printf("bon");
  } else if (n % 10 == 0 || n % 10 == 1 || n % 10 == 6 || n % 10 == 8) {
    printf("pon");
  } else {
    printf("hon");
  }

  return (0);
}
