static void Main(string[] args)
{
Tree btree = new Tree();
btree.insertvalue(btree, 10);
btree.insertvalue(btree, 15);
btree.insertvalue(btree, 5);
btree.insertvalue(btree, 4);
btree.TraversePreOrder(btree.root);
Console.WriteLine("Getting Sorted Value");
btree.getsortedlist(btree.root);
}