using System;

public class Program

{

    public static void Main()

    {

    {

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

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

        {

            multTable[0, i] = i; //establishes the first row

            multTable[i, 0] = i; //establishes the first column

        }

​

        for (int i = 1; i < 13; i++)

        {

            for (int j = 1; j < 13; j++)

            {

                multTable[i, j] = i * j;

            }

        }

​

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

        {

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

            {

                if (multTable[i, j].ToString().Length == 1) //one digit values

                {

                    Console.Write(multTable[i, j] + "  |    ");

                }

                else if (multTable[i, j].ToString().Length == 2)

                {

                    Console.Write(multTable[i, j] + " | ");

                }

                else

                    Console.Write(multTable[i, j] + "|  ");

            }

​

            Console.WriteLine("\n ---------------------------------------------------------------------------------------------------");

        }

    }

}