2

0

1

0

5

0

2

1

2

0

1

0

9

0

4

1

11

0

5

1

0

0

0

0

2

0

1

0

6

0

3

0

2

0

1

0

2

0

1

0

10

0

5

0

9

0

4

1

2

0

1

0

1

0

0

1