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---0-1---1-0-------0-1--1---------
-2-----------2---2--------2-------
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---0-1---1-0-------0-1--1---------
-2-----------2---2--------2-------
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---0-1--1---110------0------------
-2-------------0---------2-4-2----
-----------------------2----------
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-------0-00-----------------------
---0-1-----3-0----0---------0-----
-2------------------1---1-1---1-2-
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