try yourself |run program

#include <stdio.h>
#include <conio.h>

void main(){
  int *ptr1 ;
  int **ptr2 ;
  int v = 100 ;
 clrscr();
 ptr1 = &v ;
 ptr2 = &ptr1 ;
 printf("\n address of v = %p",ptr1);
 printf("\n address of ptr1 = %p",ptr2);
 getch();
}

Program Output

address of v = 0019FF44
address of ptr1 = 0019FF48