#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;
using P = pair<int,int>;

int main() {
  int n;
  cin >> n;
  if(N%10 == 3) cout << "bon" << endl;
  else if(N%10 == 0||N%10 == 1||N%10 == 6||N%10 == 8) cout << "pon" <<endl;
  else cout << "hon" <<endl;
  return 0;
}