In the following program, show the configuration of all the variables and the output.
#include
void main(void)
{
int a;
int* p;
int** q;
a = 14;
p = &a;
q = &p;
printf("%d\n", a);
printf("%d\n", *p);
printf("%d\n", **q);
printf("%d\n", p);
printf("%d\n", q);
}