1  --------------------------5-------------------------------------------------------------------------
 2 -----------------5---8----------8-----5---------5--------------------------------------------------
 3  ----5----7---------------------------------7---------------------------------------------------------
 4   ----------------------------------------------------------------------------------------------------
 5  -----------------------------------------------------------------------------------------------------
6   ----------------------------------------------------------------------------------------------------

1-----------------------------------5-----8--7----5---------------------------------------------------
2---------------------5------7-------------------------8-----5----------------------------------------
3-----5-------7-------------------------------------------------------------------------------------
4-------------------------------------------------------------------------------------------------
5-------------------------------------------------------------------------------------------------
6-------------------------------------------------------------------------------------------------


-1---------------------------------------------------------------------------------------------
-2----------5------------5---------------------------------------------------------------------
-3----7--------7---5--------7----5----0-------5------4------------------------------------
-4---------------------------------------------------------------------------------------------
-5---------------------------------------------------------------------------------------------
-6---------------------------------------------------------------------------------------------