/* 3. ´ÙÀ½ ÇÁ·Î±×·¥ÀÇ Ãâ·ÂÀ» ½á¶ó. */

#include <stdio.h>

typedef struct xxx {
	int a;
	int b;
	int c;
} XXX;

void hello(XXX x)
{
	x.b = x.a;
	x.a = x.c;
	x.c = x.b;
}

void olleh(XXX *x)
{
	x->b = x->c;
	x->c = x->a;
	x->a = x->b;
}

int add(XXX r,XXX *s)
{
	return r.c + s->c;
}

main()
{
	int number[5] = { 1, 2, 3, 4, 5 };
	XXX p = { number[0], number[1], number[2] };
	XXX q = { number[2], number[3], number[4] };
	int y;

	hello(p);
	olleh(&q);
	y = add(p,&q);
	printf("result = %d\n",y);
}