-7-5---0---0-----0-------------------------------0--------0-|
-----8---9---7------0---0------0--------0-----------7--8----|
---------------8------7----6------0---------6--7------------|
-----------------------------8-------7----------------------|
------------------------------------------------------------|
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------0----------0-----7--5-----0---0-------0---------------|
-7------0--------------------8----9---7-------0----0--------|
---8-------5--6--------------------------8------7-----6-----|
---------------------------------------------------------8--|
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---------------0---------0---------------5--------0---|
-0-------7--------7---------0-------0-------0-------0-|
---0--------6--------6----------------7--------8------|
------8--------------------------9--------------------|
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