#include <stdio.h>

struct point {
	int x;
	int y;
};

int main(){
	struct point pt = {320,200};

	printf("%d, %d\n", pt.x, pt.y);

	pt.x = 900;
	pt.y = 1000;

	printf("%d, %d\n", pt.x, pt.y);

	struct point *pp;

	pp = &pt;
	
	printf("%d, %d\n",(*pp).x, (*pp).y);
	printf("%d, %d\n",pp->x, pp->y);


}