static void Main(string[] args)
{
Tree <int> tree = new Tree <int>();
tree.AddNode(3);
tree.AddNode(5);
tree.AddNode(2);
tree.AddNode(1);
tree.AddNode(6);
tree.AddNode(7);
tree.AddNode(4);
tree.AddNode(5);
tree.AddNode(10);
tree.AddNode(6);
//Console.WriteLine(tree.Root);
//tree.Root.Left = new TreeNode<int>();
//Add(tree.Root.Left);
//Console.WriteLine(tree.Root.Left);
tree.DFS();
Console.WriteLine();
tree.BFS();
Console.WriteLine(tree.Contains(3));
}