public static void Main(string[] args)
{
Node n = new Node(1, new Node(1), new Node(1, new Node(1), null));
Console.WriteLine("{0}", n.Any(x => x % 2 == 0));
n = new Node(1, new Node(1), new Node(1, new Node(2), null));
Console.WriteLine("{0}", n.Any(x => x % 2 == 0));
}
public Node(int val, Node left, Node right)
{
this.Val = val;
this.Right = right;
this.Left = left;
}