#include <bits/stdc++.h>

using namespace std;

int main()
{
int n;
cin>>n;
if(n%10==2||n%10==4||n%2==5||n%2==7||n%2==9)
    cout<<"hon";
else (n%10==3)
    cout<<"pon";
else
    cout<<"bon";
     return 0;                 
}

