public void circular()
	{
		Node n = new Node(1);
		n.next = new Node(2);
		n.next.next = new Node(4);
		n.next.next.next = new Node(5);
		n.next.next.next.next = n.next.next;
		System.out.println("Circular : " + isCircular(n));
		System.out.println("Head : " + circularHead(n));
		
	}