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---2---22-------------2---22-------------------------------------------------------
---2---22----5 0------2---22-----33----5------------------------------------------
---0---00-------------0---00-------------------------------------------------------
                                               do that twice
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---7----7-----7--------5-----5------5---------2-----2------2------------------------
-----7-----7-----7--------5-----5------5---------4------4-----4---------------------thats all i got so far ! good luck!