using System;

public class Program

{

    public static void Main()

    {

        int[, ] mt = new int [13,13];

for(int i = 0; i < 13; i++)

{

    for (int j = 0; j < 13; j++)

    {

mt[i,j] = i;

    if (j < 10)

    {

        Console.Write(" " + i*j + " |");

    }

    else if (j > 10)

    {

        Console.Write(" " + i*j + "|");

    }

        else

        Console.WriteLine();

    }

}

for(int i = 0; i < 13; i++)

{

    mt[i,0] = i;

        if(i < 10)

        {

            Console.WriteLine(" " + i + " |");

            Console.WriteLine("_______________________________________________________");

        }

    else if(i >= 10)

    {

        Console.WriteLine(" " + i + "|");

        Console.WriteLine("_______________________________________________________");

    }

}

​

​

​

    }

}