#include <math.h>
#include <stdio.h>
#include <string.h>
int n, ans;
int main(void) {
    scanf("%d", &n);
    if (n < 10) {
        ans = n;
    } else {
        ans = n % 100;
    }
    if (ans == 3) {
        printf("bon\n");
    } else if (ans == 0 || ans == 1 || ans == 6 || ans == 8) {
        printf("pon\n");
    } else {
        printf("hon\n");
    }
}