han's submissions for 1040 凑表达式

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han
on April 12, 2010, 2:27 p.m.
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han
on April 12, 2010, 2:17 p.m.
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han
on April 12, 2010, 2:02 p.m.
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han
on April 12, 2010, 1:57 p.m.
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