0

0

0

0

0

2

-1

0

1

-1

0

1

-1

1

3

-1

0

1

-1

0

0

-1

1

1

0

2

3

0

0

0

0

0

0

0

0

0

0

0

2

0

1

1

0

1

3

0

1

3

0

0

1

7

0

3

-1

0

0

-1

3

4

-1

0

4

-1

0

2

2

0

2

8

4

7

-1

0

1

-1

0

0

-1

0

1

-1

0

0