#include <iostream>
#include <string>

int main(){
    int n;
    int answer;
    cin >> n;
    answer = n % 10;
    if(answer == 3){
        cout << "bon" << endl;
    }
    else if(answer == 0 && answer == 1 && answer == 6 && answer == 8){
        cout << "pon" << endl;
    }
    else{
        cout << "hon" << endl;
    }
    
    return 0;
}