1-1

1-2

2-1

2-2

3-1

3-2

3-3

3-4

4-1

4-2

4-3

5-1

5-2

6-1

7-1

8-1

8-2

9-1

9-2

10-1

10-2

11-1

12-1

12-2

13-1

14-1

14-2

15-1

15-1

16-1

16-2

16-3

16-4

17-1

17-2

18-1

19-1

19-2

19-3

20-1

20-2

20-3

20-4

20-5

21-1

21-2