4-----------------------------------------12--
4---------12----14---14---14---14----16-------
4---14----------------------------------------
4---------------------------------------------
4---------------12----------------------------
4---------------------------------------------
4-----------------------11---12---
4--12----12---12---12-------------
4---------------------------------
4---------------------------------
4--11-----------------------------
4---------------------------------
4----------------------------9--------------------7---9---
4--10---10---10---10---12---------9---9---9---9-----------
4---------------------------------------------------------
4---------------------------------------------------------
4---9-----------------------------7-----------------------
4---------------------------------------------------------