using System;

public class Program

{

    public static void Main()

    { int [,] a= new int [500,500];

        int i=1;

      for (int b=0; b<a.GetLength (0);b++ )

      {

       for (int c=0; c<a.GetLength(1); c++)

       {

        a[b,c]=i;

           Console.Write("["+a[b,c]+"]");

           i++;

       }

          Console.WriteLine();

      }

    }

}