/*  ex3_2
    Graku   */
#include <stdio.h>

int main(void) {
    int n; //declaration
    scanf("%d", &n);

    switch (n % 10) { //ones place == n % 10
        case 0 : printf("pon\n"); break;
        case 1 : printf("pon\n"); break;
        case 2 : printf("hon\n"); break;
        case 3 : printf("bon\n"); break;
        case 4 : printf("hon\n"); break;
        case 5 : printf("hon\n"); break;
        case 6 : printf("pon\n"); break;
        case 7 : printf("hon\n"); break;
        case 8 : printf("pon\n"); break;
        case 9 : printf("hon\n"); break;
    }

    return 0;
}