#include <iostream>
#include <cstdio>
using namespace std;
int main()
{
int n;
cin >> n;
switch(n%10)
{
case  2:
case 4:
case 5:
case 7:
case 9: cout << "hon";
break;
case  0:
case 1:
case 6:
case 8: cot << "pon";
break;
case 3: cout << "bon";
}
return 0;
}
