-1

0

5

-1

0

1

-1

2

0

-1

0

0

-1

1

4

-1

0

0

-1

1

3

-1

0

0

-1

1

2

-1

0

0

-1

0

2

-1

0

0

-1

2

4

-1

0

0

-1

2

0

-1

0

0

-1

0

2

-1

0

0

-1

4

4

-1

0

0