/* 3. ´ÙÀ½ ÇÁ·Î±×·¥ÀÇ Ãâ·ÂÀ» ½á¶ó. */

#include <stdio.h>

void swap(int a,int b,int *c,int *d)
{
	a = a + 1;
	b = b + 2;
	*c = *c + 3;
	*d = *d + 4;
}

main()
{
	int a;
	int b;
	int i;
	int x[4];

	printf("a ? "); scanf("%d",&a);
	printf("b ? "); scanf("%d",&b);

	x[0] = a;
	x[1] = b;
	x[2] = a;
	x[3] = b;

	swap(x[0],x[1],&x[2],x+3);
	for(i = 0; i < 4; i++) {
		printf("x[%d] = %d\n",i,x[i]);
	}
}