#include <stdio.h>

struct s {
int x;
int y;};

int main(void) {
struct s a = {10, 20};
struct s b = {10, 20};
struct s c = {30, 40};

if (a.x == b.x) a.x = c.x;
printf("a.x = %d\n", a.x);

//a = b;

//if (a == b) a = c;
printf("a.y = %d\n", a.y);
	// your code goes here
	return 0;
}