#include<stdio.h>
int main()
{
    int N ;
    scanf("%d", &N);
    N/2 ;
    if(N=='3'){
        printf("bon\n");
    }
    else if(N=='0' || N=='1' || N=='6' || N=='8') 
       printf("pon\n");
    else
        printf("hon\n");
    return 0;