2

2

4

4

4

4

7

7

4

4

3

3

4

4

6

6

0

0

2

2

0

0

4

4

3

3

0

0

1

1

1

1

1

1

3

3

2

2

0

0

3

3

2

2

0

0

2

2

5

5

3

3

1

1

3

3

5

5

1

1

0

0

1

1

0

0

2

2

1

1

0

0

2

2

2

2

0

0

0

0

1

1

4

4

3

3

4

4

0

0

0

0

5

5

3

3

1

1

5

5

0

0

1

1

2

2

1

1

1

1

0

0

3

3

0

0

0

0

0

0

0

0

2

2

2

2

2

2

1

1

0

0

3

3

0

0

3

3

0

0

3

3

0

0

1

1

1

1

3

3

3

3

2

2

4

4

28

28

11

11

1

1

1

1

1

1

0

0

1

1

0

0

0

0

0

0

2

2

1

1

0

0

0

0

0

0

0

0

0

0

0

0

3

3

0

0

1

1

0

0

1

1

1

1

3

3

1

1

3

3

1

1

1

1

2

2

1

1

2

2

0

0

2

2

0

0

1

1

0

0

1

1

2

2

0

0

0

0

0

0