#include <stdio.h>
int main()
{
int a=5,*b,**c=&b;
b=&a;
*b=7;
printf("%d   %d  %d\n",a,*b,**c);
printf("%p   %p  %p\n",&a,&b,&c);
printf("%p  %p\n",b,*c);
printf("%p\n",c);

return 0;
}