static Node lca(Node root,int v1,int v2)
    {
        Node curr = root;
        
        while ((curr.data < v1 && curr.data < v2) || (curr.data > v1 && curr.data > v2)) {
            if(curr.data < v1 && curr.data < v2){
                curr = curr.right;
            }
            else {
                curr = curr.left;
            }
        }
        
        return curr;
    }