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---------------------------------12-12-12-12--------------------
---------6666----666------------------------22222---------------
-----6666----6666---4444---------------------------9999---------
6666--------------------3333---------------------------4444-----
----------------------------88888-------------------------------

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---4-4--344---344---7-6-7-6-7-6-----------------

solo

---12------21--------12-------21-------------------------
--------------------------------13-14-12-5-1-2-4----------
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