2

2

0

0

0

0

0

0

0

0

4

4

0

0

2

2

1

1

4

4

7

7

5

5

4

4

2

2

1

1

0

0

0

0

1

1

1

1

2

2

1

1

5

5

7

7

2

2

10

10

0

0

2

2

7

7

3

3

10

10

4

4

1

1

0

0

11

11

11

11

2

2

14

14

8

8

3

3

10

10

18

18

8

8

15

15

12

12

15

15

9

9

8

8

16

16

11

11

13

13

11

11

9

9

19

19

12

12

11

11

7

7

6

6

13

13

22

22

15

15