static void Main(string[] args)
{
BinaryTree bt = new BinaryTree(); //Create a Binary Tree
bt.Root = new Node(1);
bt.Root.Left = new Node(2);
bt.Root.Right = new Node(3);
bt.Root.Left.Left = new Node(4);
bt.Root.Left.Right = new Node(5);
bt.Root.Right.Left = new Node(6);
bt.Root.Right.Right = new Node(7);
Console.WriteLine("Zigjag BFS traversal of binary tree is ");
bt.PrintBFSOrder(bt.Root); //Print BFS Mode and reverse at each level while printing
Console.ReadKey();
}