6

�

�

�

8

�

�

�

7

�

�

�

�

�

�

5

�

�

�

�

�

8

�

6

�

�

�

�

7

�

4

�

�

�

�

�

�

�

�

7

7

�

7

1

7

�

�

1

�

�