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---7-----6---6---4---------4h6-----6-----4---4-------4-------------------------|
--4------------------7------------4--------------7--------5----4----5----------|
-5-----5---5---5---5-----5-----------------------------------------------------|
---------------------------------5-----5---5---5---5----5----5----5------------|

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----------------3---3---5---5--------------------------------------------------|
----4---6---6---------------------6---7----7--5~-------------------------------|
--5----------------------------------------------------------------------------|
---------------------------------4---------------------------------------------|
-3----3---3---3---3---3---3-----5---5----5----5~-------------------------------|