#include <iostream>
using namespace std;

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

switch (N%10){
	case 2;
    case 4;
    case 5;
    case 7;
    case 9;
    
    cout >> "hon";
    
    case 0;
    case 1;
    case 6;
    case 8;
    
    cout >> "pon";
    
    case 3;
    
    cout >> "bon";
}
}
