public SLL onlyEvenPos() {
    SLL evenPosition = new SLL();
    SLLNode current = root.next;
    SLLNode last = root;
    int br = 0;
    while(current != null) {
      br++;
      if(br % 2 == 0) {
        evenPosition.addToEnd(current.value);
        last.next = current.next;
      }
      last = current;
      current = current.next;
    }
    return evenPosition;
  }