#include <stdio.h>

int main ( ) {
	int a1[4];
	int k;
	int a2[4];
	for (k=0; k<4; k++) {
		a1[k] = k+1;
		a2[k] = 2*(k+1);
	}
	a1[5] = 999;
	a2[5] = 762;
	printf ("k = %d\n", k);
	printf ("elements of a1 = %d %d %d %d\n", a1[0], a1[1], a1[2], a1[3]);
	printf ("elements of a2 = %d %d %d %d\n", a2[0], a2[1], a2[2], a2[3]);
	return 0;
}