//Zachary Fitzsimmons

public class ListNode
{
   private ListNode left, right;
   private Integer value;

   public ListNode(Integer i)
   {
     value = i;
     left = null;
     right = null;
   }
   public void setLeft(ListNode l)
   {
     left = l;
   }
   public void setRight(ListNode r)
   {
     right = r;
   }
   public ListNode getLeft()
   {
     return left;
   }
   public ListNode getRight()
   {
     return right;
   }
   public Integer getValue()
   {
     return value;
   }
}