#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define ll long long

int main(){
	int n;
	cin >> n;

	if(n == 3) cout << "bon" << endl;
	else if(n = 0 || n = 1 || n = 6 || n = 8) cout << "pon" << endl;
	else cout << "hon" << endl;
	
	return 0;
}