l------------------------------------------------------------------------------
l------------------------------------------------------------------------------
l------------------------------------------------------------------------------
l------------------------------------------------------------------------------
l---------7-7-7-7-7-7-7-7-----9-9-9-9-9-9-9-9---------------------------------
l---------5-5-5-5-5-5-5-5-----7-7-7-7-7-7-7-7--------------------------------

l------------------------------------------------------------------------------
l------------------------------------------------------------------------------
l------------------------------------------------------------------------------
l------9-9---12---9--7--5---4--------------------------------------------------
l------7-7---10---7--5--3---2--------------------------------------------------
l------------------------------------------------------------------------------


l------------------------------------------------------------------------------
l------------------------------------------------------------------------------
l------------------------------------------------------------------------------
l------9-9---12---9--7--5--7--5-4---------------------------------------------
l------7-7---10---7--5--3--5--3-2---------------------------------------------
l------------------------------------------------------------------------------

l------------------------------------------------------------------------------
l------------------------------------------------------------------------------
l------------------------------------------------------------------------------
l------------------------------------------------------------------------------
l---------7-7-7-7-7-7-7-7-----9-9-9-9-9-9-9-9---------------------------------
l---------5-5-5-5-5-5-5-5-----7-7-7-7-7-7-7-7--------------------------------