2

0

1

0

1

0

0

1

0

0

0

0

4

0

2

0

21

1

9

0

16

2

5

0

12

0

6

0

0

0

0

0

7

1

2

0

4

0

2

0

2

0

1

0

0

0

0

0

2

0

1

0