4

4

4

4

1

4

4

4

4

4

�

�

8

�

�

�

�

�

7

5

�

8

8

8

8

�

�

8

�

�

�

�

�

�

�

�

�

�

�

�

�

�

�

�

�

�

�

�

�

�