2

1

3

7

3

4

-1

0

0

-1

2

3

-1

0

1

-1

0

0

-1

0

0

-1

3

5

-1

10

15

-1

0

0

2

0

1

2

1

5

-1

2

5

-1

0

0

-1

0

0

-1

0

2

7

1

1

3

0

0

-1

1

5

-1

0

0