#include<stdio.h>
signed main(){
    int n;
    scanf("%d",&n);
    n %=100;
    n %=10;
    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);
}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
