#include <bits/stdc++.h>
using namespace std;

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

int main(){
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	cout<<setprecision(32);

	int n; cin>>n;
	n %= 10;
	if(n == 2 || n == 4 || n == 5 || n == 7 || n == 9){
		cout<<"hon"<<endl;
	}else if(n == 0 || n == 1 || n == 6 || n == 8){
		cout<<"pon"<<endl;
	}else{
		cout<<"bon"<<endl;16
	}

	return 0;
}