x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
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x
x
x
x
x
x
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x
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
5
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
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x
3
3
3
3
3
3
3
3
3
3
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3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
x
x
x
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x
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x
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3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
x
x
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x
x
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x
x
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
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3
3
3
3
x
x
x
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x
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x
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3
3
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3
3
!
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
!
NNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
!