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