----------------------------------------------------
----------------------------------------------------
--999---555-----------------------------------------
--999---555---555--777------------------------------ x6
--777---333---555--777------------------------------
--------------333--555------------------------------
----------------------------------------------------
----------------------------------------------------
--999xxx555xxx-------------------------------------- x4
--999xxx555xxx555--777------------------------------
--777xxx333xxx555--777------------------------------
--------------333--555------------------------------
---7----3-------------------------------------------
------------5---3-----5----0------------------------
----------------------------------------------------
---------------------------------------------------- x4
----------------------------------------------------
----------------------------------------------------
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