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Have typed the question is latex format, here it is: enter image description here

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Also on cstheory: cstheory.stackexchange.com/questions/12657/… –  Yuval Filmus Sep 20 '12 at 4:04
The picture is very hard to read, why don't you just write post your code in here, most of it should work with MathJax. –  Julian Kuelshammer Oct 18 '12 at 7:54

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