-----------------------------------------------------------------------------------------------------  -
-----------------------------------------------------------------------------------------------------  -
----------------------------------------------------------------0--2--3--2--0---------------------
------0--2--3--2--0-----------------0--2--3--2--0-------------2----------------2--------------
---2--------------------2---------2--------------------2----3---------------------------------------
3------------------------------3-------------------------------------------------------------------


-------------------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------------------------
-------------------------------------------2----4-----------------------------------------------------
------------0--2--3--2--0---------0--4-----------------2--3----5----------0--2--3--2--0---------
--------2-------------------2-----------------------3-------------------2--------------------2------
----3-----------------------------------------------------------------3--------------------------