#include <stdio.h>
#include<conio.h>
int main()
{
int a ;
int *ptr1 ;
int **ptr2 ;
int ***ptr3 ;
ptr1 = &a ;
ptr2 = &ptr1 ;
ptr3 = &ptr2 ;
printf("\nAddress of normal variable 'a' = %u\n", ptr1) ;
printf("Address of pointer variable '*ptr1' = %u\n", ptr2) ;
printf("Address of pointer-to-pointer '**ptr2' = %u\n", ptr3) ;
return 0;
}