#include <stdio.h>

void swap(int *x, int *y);

int main(void) {
	int x[5] = {1,2,3,4,5};
	int y[5] = {6,7,8,9,10};
	
	int i;
	for(i=0;i<5;i++){
		swap(&x[i], &y[i]);
		printf("%d\n", x[i]);
		printf("%d\n", y[i]);
	}
	
	return 0;
}

void swap(int *x, int *y) {
	int w;
	w = *x;
	*x = *y;
	*y = w;
}