CID W-22 List 1 (least difficult) CID W-22 List 1 (most difficult) CID W-22 List 1-4 (25 least difficult) CID W-22 List 1-4 (25 most difficult) CID W-22 List 2 (least difficult) CID W-22 List 2 (most difficult) CID W-22 List 3 (least difficult) CID W-22 List 3 (most difficult) CID W-22 List 4 (least difficult) CID W-22 List 4 (most difficult)