static void Main(string[] args)
{
Component root = new Composite("ROOT");
Component branch1 = new Composite("BR1");
Component branch2 = new Composite("BR2");
Component leaf1 = new Leaf("L1");
Component leaf2 = new Leaf("L2");
root.Add(branch1);
root.Add(branch2);
branch1.Add(leaf1);
branch2.Add(leaf2);
root.Operation();
Console.ReadLine();
}