public static MyLinkedList getSumElements(MyLinkedList l1, MyLinkedList l2, int carry){
    
    if (l1 == null && l2 == null && carry == 0) {
      return null;
    }

    
    MyLinkedList sum = new MyLinkedList();
    
    MyLinkedList node = getSumElements(l1.getNext(), l2.getNext(),  carry);
    
    
    int data = carry;
    
    if (l1 != null) {
      data = data + l1.getData();
    }
    if (l2 != null) {
      data = data +l2.getData();
    }
    
    System.out.println(data);
   
    
    sum.add(node);
    
    
    
    return sum;
    
    
  }