1 2


2 1






1 1 1 1
1 1 1 1




4 1 2 1 2 1 2 1 2 1 4

0 0 1 1 1 1 1 1 1 1 1 1 1 0 0





0





0





0




2 2


1 1 1 1


1 1 1 1




4 4




1 1




1 1


1 1 1 1





7





0
1 1 1 1 1 1

1 1 1 1 1





0

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