#include <cmath>
#include <iostream>
#include <iomanip>
#include <set>
#include <string>

#ifdef MY_LOCAL
#define MY_NAMESPACE(n) namespace n {
#define MY_NAMESPACE_   }
#else
#define MY_NAMESPACE(n)
#deinfe MY_NAMESPACE_
#endif

//#ifdef MY_LOCAL
//namespace ABC168A {
//#endif
MY_NAMESPACE(ABC168A)

using namespace std;
int main()
{
	int n;
	cin >> n;

	string ans;
	switch (n % 10)
	{
	case 0:
	case 1:
	case 6:
	case 8:
		ans = "pon";
		break;
	case 2:
	case 4:
	case 5:
	case 7:
	case 9:
		ans = "hon";
		break;
	case 3:
		ans = "bon";
		break;
	}

	cout << ans << endl;
	return 0;
}

MY_NAMESPACE_