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No Special Judge??? why? there can be many answers

Posted by kcm1700 at 2006-08-26 20:31:26 on Problem 1747 
No Special Judge??? why? there can be many answers...
((A1|B1)|(((A0|B0)|(A0|B0))|((A1|A1)|(B1|B1))))

can be written
((((A0|B0)|(A0|B0))|((A1|A1)|(B1|B1)))|(A1|B1))
((((A0|B0)|(A0|B0))|((A1|A1)|(B1|B1)))|(B1|A1))
... etc
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