#include <stdc++.h>
  #include <algorithm>
  #include <bitset>
  #include <complex>
  #include <deque>
  #include <exception>
  #include <fstream>
  #include <functional>
  #include <iomanip>
  #include <ios>
  #include <iosfwd>
  #include <iostream>
  #include <istream>
  #include <iterator>
  #include <limits>
  #include <list>
  #include <locale>
  #include <map>
  #include <memory>
  #include <new>
  #include <numeric>
  #include <ostream>
  #include <queue>
  #include <set>
  #include <sstream>
  #include <stack>
  #include <stdexcept>
  #include <streambuf>
  #include <string>
  #include <typeinfo>
  #include <utility>
  #include <valarray>
  #include <vector>

using namespace std;

int main(){
    int N;
    cin >> N;
    vector<int> number;
    while(N>0)
    {
        number.push_back(N%10);
        N/=10;
    }

    switch (number[0])
    {
    case 2: case 4: case 5: case 7: case 9:
        cout << "hon"<< "\n";
        break;
    case 0: case 1: case 6: case 8:
        cout << "pon"<< "\n";
        break;
    case 3:
        cout << "bon"<< "\n";
        break;
    default:
        break;
    }



}