| ex. 12 |

1 | ex. 1 | 

2 | ex. 2 | 

3 | ex. 3 | 

4 | ex. 4 | 

5 | ex. 5 | 

6 | ex. 6 | 

7 | ex. 7 | 

8 | ex. 8 | 

9 | ex. 9 | 

10 | ex. 10 | 

11 | ex. 11 | 

12 | ex. 12 | 

13 | ex. 13 | 

14 | ex. 14| 

15 | ex. 15 | 

16 | ex. 16 | 

17 | ex. 17 | 

18 | ex. 18 | 

19 | ex. 19 | 

20 | ex. 20 | 

21 | ex. 21 | 

22 | ex. 22 | 

23 | ex. 23 | 

24 | ex.24 | 