#include <iostream>
using namespace std;
int main(void){
    // Your code here!
    int N;
    cin >> N;
    if(N%10=3)
    cout >> "bon" >> endl;
    else if(N%10=2)
    cout >> "hon" >> endl;
    else if (N%10=4)
    cout >> "hon" >> endl;
    else if (N%10=5)
    cout >> "hon" >> endl;
    else if (N%10=7)
    cout >> "hon" >> endl;
    else if (N%10=9)
    cout >> "hon" >> endl;
    else if (N%10=0)
    cout >> "pon" >> endl;
    else if (N%10=1)
    cout >> "pon" >> endl;
    else if (N%10=6)
    cout >> "pon" >> endl;
    else
    cout >> "pon" >> endl;
}