16

0

4

8

0

0

0

0

0

0

0

0

4

0

1

2

0

0

0

0

20

1

7

3

7

0

2

3

2

0

1

0

0

0

0

0

0

0

0

0

2

0

1

0

0

0

0

0

1

0

0

1

8

0

3

2