7

�

�

�

�

6

�

7

�

�

4

9

9

9

9

9

9

9

9

9

9

9

�

�

�

�

�

�

�

�

�

�

8

1

8

1

8

8

8

8

8

8

8

8

8

�

�

�

�

�