0

0

0

0

9

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4

1

0

0

0

0

0

0

0

0

0

0

0

0

6

0

3

0

0

0

0

0

8

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2

4

0

0

0

0

23

0

10

3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0