C Tutorial/Pointer/Address Operator

#include <stdio.h>
int main()
{
   int a;        /* a is an integer */
   int *aPtr;    /* aPtr is a pointer to an integer */
   a = 7;
   aPtr = &a;    /* aPtr set to address of a */
   printf( "The address of a is %p"
           "\nThe value of aPtr is %p", &a, aPtr );
   printf( "\n\nThe value of a is %d"   
           "\nThe value of *aPtr is %d", a, *aPtr );
   printf( "\n\nShowing that * and & are complements of "
           "each other\n&*aPtr = %p"   
           "\n*&aPtr = %p\n", &*aPtr, *&aPtr );
   return 0; 
}