1a, 3c 1b, 3d

2a, 3a 2b, 3b

4a, 5a, 5d 4b, 5b 5c

7a, 8d

6a

6b 6c 6d

7b

8a

8b

9a, 9b 9c 9d

10a, 13d 10b, 13b

13a, 14a 13c, 14d 14c

11a

11b 11c

11d

11e

11f11g

11h

12a, 12b, 17b, 17c

15a, 15b,17a, 17d

19a, 19b

20a, 20c

16a, 16b, 16c, 16d,18a, 18b

20b, 20d