using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(WriteBlockAsc(true));

        Console.WriteLine(WriteBlockDesc(true));

        Console.WriteLine(WriteBlockDesc(false));

        Console.WriteLine(WriteBlockAsc(false));

    }

    public static string WriteBlockAsc(bool starsFirst = true) 

    {

        var s = "";

        for(var j = 1; j <= 10; j++)

        {

            s += "\n" + WriteLine(j, 10, starsFirst);

        }

        return s;

    }

    public static string WriteBlockDesc(bool starsFirst = true) 

    {

        var s = "";

        for(var j = 10; j >= 0; j--)

        {

            s += "\n" + WriteLine(j, 10, starsFirst);

        }

        return s;

    }

    public static string WriteLine(int i, int t, bool starsFirst = true)

    {

        var s = "";

        var d = t - i;

        if (starsFirst)

        {

            for(var k = 0; k < i; k++)

            {

                s += "*";

            }

            for(var l = 0; l < d; l++)

            {

                s += " ";

            }

        }

        else

        {

            for(var l = 0; l < d; l++)

            {

                s += " ";

            }

            for(var k = 0; k < i; k++)

            {

                s += "*";

            }   

        }

        return s;

    }

}