------------------------------------------------------------------------------
------------------------------------------------------------------------------
----------------------------------------------2--1----------------------------
----------0--2-----1-----0--------------0--2-----------------0--2-----1-------
-0--2--3--------3-----2-----1--0--2--3--------------0--2--3--------3-----2----
------------------------------------------------------------------------------


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


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


------------------------------------------------------------------------------
------------------------------------------------------------------------------
------------------------------------------------------------------------------
-1-----0-----2--1--0-----------2----------------------------------------------
----2-----1-----------3--2--1-------------------------------------------------
------------------------------------------------------------------------------