2

0

1

0

23

0

7

9

4

0

2

0

2

0

1

0

10

0

5

0

2

0

1

0

0

0

0

0

2

0

1

0

2

0

1

0

0

0

0

0

2

0

1

0

2

0

1

0

18

0

8

2