public static void Main(string[] args)
{
var l_c = new C1();
l_c.Data = "Test";
Console.ReadKey();
Console.WriteLine(l_c.Data);
Console.ReadKey();
var l_c1 = l_c.Clone();
l_c1.Data = "New Test";
Console.WriteLine("original = {0}; coppied = {1}", l_c.Data, l_c1.Data);
Console.ReadKey();
}