#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <cfloat>
#include <chrono>
#include <climits>
#include <cmath>
#include <cstdio>
#include <deque>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <unordered_map>
#include <unordered_set>
#include <vector>
using namespace std;

template <class T1, class T2>
ostream& operator << (ostream& out, const pair <T1, T2> p)
{
	out << '(' << p.first << ',' << p.second << ')';
	return out;
}

template <class T1, class T2>
istream& operator >> (istream& in, pair<T1, T2> &p)
{
	in >> p.first >> p.second;
	return in;
}

template <class T>
istream& operator >> (istream& in, vector<T> &v)
{
	for (T &x : v)
		in >> x;
	return in;
}

template <class T>
ostream& operator << (ostream& out, const vector<vector<T>> &v)
{
	for (const vector<T> &x : v)
		out << x << '\n';
	return out;
}

template <class T>
ostream& operator << (ostream& out, const vector<T> &v)
{
	for (const T &x : v)
		out << x << ' ';
	return out;
}

long long gcd (long long a, long long b)
{
	if (b > a)
		swap(a, b);
	return (b ? gcd(b, a % b) : a);
}

using ll   = long long;
using pii  = pair<int, int>;
using pll  = pair<long long, long long>;
using tiii = pair<pair<int, int>, int>;
using vi   = vector<int>;
using vl   = vector<long long>;
using vvi  = vector<vector<int>>;
using vvl  = vector<vector<long long>>;

#define F          first
#define S          second
#define First      first.first
#define Second     first.second
#define Third      second
#define mp         make_pair
#define rep(i,a,b) for (int i = (a); i < (b); i++)
#define per(i,b,a) for (int i = (b); i > (a); i--)
#define all(x)     x.begin(), x.end()
#define ret(x)     return cout << x, 0;
#define throwex    throw runtime_error ("Found the error.");

const int h = 1000000007;

signed main()
{
	ios::sync_with_stdio(false);
	#ifdef ONLINE_JUDGE
	cin.tie(nullptr);
	cout.tie(nullptr);
	cerr.setstate(ios::failbit);
	#endif

	int N;
	cin >> N;
	vvi v{
		{2, 3, 4, 5, 7, 9},
		{0, 1, 6, 8},
		{3};
	}
	vector<string> a{"hon", "pon", "bon"};
	rep(i,0,3)
	if(count(all(v[i]), N%10))
		cout << a[i];
}
