#include <iostream>
 using namespace std;
  int main(){
      int N;
      int n=N%110;
      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;
        }
      }
  }