bueno, esta me la pidieron, y pos yo no fallo... 
aqui esta el requinto de al principio en medio, y casi al final
s: ligado

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2-----------9-9--9-9-9-11--------8-8--16--16-16-14-14--10s11-11-11-11-
3---------------------------------------------------------------------
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1--------9--11-13---11-9-8--8-8-8-11-9-8s9s8--8-8-8------8--8-8-8--
2-11-13--11-13-14-----------------------------------11-9-----------
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4------------------------------------------------------------------
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6------------------------------------------------------------------

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2--------------9------9------9------9-----13--13-13--11-11--9--11-9-8--
3------------8------8------8------8------------------------------------
4----------------------------------------------------------------------
5----------------------------------------------------------------------
6 ---------------------------------------------------------------------