x3
--9--9--12-12-7-7-10-10-2-2-2-2-2-2-2-2-----------------
--10-10-10-10-8-8-8--8--3-3-3-3-3-3-3-3-----------------
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x2
--5-5-5-5-5-5-5-5-2-2-2-2-2-2-2-2-----------------------
--7-7-7-7-5-5-5-5-3-3-3-3-3-3-3-3-----------------------
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