#include <stdio.h>
int main () {
    	int a[3][4]={{1,2,3,4},{5,6,7,8},{9,10,11,12}};
	int i,j;
	for(i=0;i<3;i++)
	{
		for(j=0;j<4;j++)
		{
			printf("%2d ",a[i][j]);
		}
		printf("\n");
	}

}