1

�

�

�

�

�

�

8

8

8

8

8

8

1

8

8

8

8

8

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

8

8

8

1

8

8

8

8