static void Main(string[] args)
{
Tree tree = new Tree();
tree.Root.value = 2;
tree.Root.left = new Tree.Node(7);
tree.Root.right = new Tree.Node(5);
tree.Root.left.left = new Tree.Node(2);
tree.Root.left.right = new Tree.Node(6);
tree.Root.left.right.left = new Tree.Node(5);
tree.Root.left.right.right = new Tree.Node(11);
tree.Root.right.right = new Tree.Node(9);
tree.Root.right.right.left = new Tree.Node(4);
//tree.Insert(7);
//tree.Insert(5);
//tree.Insert(3);
//tree.Insert(6);
//tree.Insert(8);
//tree.Insert(11);
//tree.Insert(4);
tree.PreetyPrint();
}