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