#include <bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin >> n;
	int s=n%10;
	if (s==2 || s==4 || s==5 || s==7 || s==9)
	cout <<"hon";
	else if(s!=3)
	cout <<"pon";
	else
	cout <<"bon";
} 