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