#include<stdio.h>

int main()
{
     int N;
    scanf("%d",&N);
    
    if(N==2||N==4||N==5||N==7||N==9){ 
    printf("hon\n");}
    
    else if(N==0||N==1||N==6||N==8){ printf("pon\n");}
    
    else if(N==3){ printf("bon\n");}
    
    return 0;
}