1 a

1 a

2-3 b

2-3 b

4-5

4-5

6-7

6-7

8-9

8-9

10 -11 C

10 -11 C

12-13

12-13

14-15 C

14-15 C

16-17

16-17

18-19 a

18-19 a

20-21 C

20-21 C

22-23 C

22-23 C

24-25

24-25

26-27 C

26-27 C

28-29

28-29

30-31b

30-31b

32 a

32 a