/* BS NODE CLASS
   Giri Gopalan
   2/ 17/ 04 */
public class node
 {                     
  public Object data; //data field of node
  public node right;  //right reference of node
  public node left;   //left reference of node

  public node (Object o, node r, node l)
   {
    data = o;
    right = r;
    left = l;
   }
 }