#include <stdio.h>

int main(void) {
	int i;
	int data[12]={1,2,3,4,5,6,7,8,9,10,11,12};

	for ( i=0 ; i<12 ; i++ )
	{
		printf("data[%d]=%d\n",i,data[i]);
	}

	printf("\n");

	data[3] = 100;
	data[8] = 1000;

	for ( i=0 ; i<12 ; i++ )
	{
		printf("data[%d]=%d\n",i,data[i]);
	}

}