
#include <bits/stdc++.h>
using namespace std;
int main(){
    int N;
    cin>>N;
    N=N%10 ;
    switch (N) {
            case 2:
        case 4:
        case 5:
        case 7:
        case 9:
            cout<<"hon"<<endl;
            break;
            case 1:
                 case 6:
                 case 8:
                 case 9:
                     cout<<"pon"<<endl;
                     break;
            case 3:
                               cout<<"bon"<<endl;
                               break;
            
        default:
            break;
    }
    
return 0;
}

