using System;

​

namespace PRACTICALEXAM1_Cahigas

{                   

public class Program

{

    public static void Main()

    {

        Console.WriteLine("A");

        Console.WriteLine("          * ");

        Console.WriteLine("        *  *");

        Console.WriteLine("      *  *  *");

        Console.WriteLine("    *  *  *  *");

        Console.WriteLine("  *  *  *  *  *");

        Console.WriteLine("B");

        Console.WriteLine("  *  *  *  *  *");

        Console.WriteLine("    *  *  *  *");

        Console.WriteLine("      *  *  *");

        Console.WriteLine("        *  *");

        Console.WriteLine("          *");

        Console.WriteLine("C");

        Console.WriteLine("  *                       *");

        Console.WriteLine("  *  *                 *  *");

        Console.WriteLine("  *  *  *           *  *  *");

        Console.WriteLine("  *  *  *  *  *  *  *  *  *");

        Console.WriteLine("  *  *  *           *  *  *");

        Console.WriteLine("  *  *                 *  *");

        Console.WriteLine("  *                       *");

        } 

    }

}

​