11 acessos
-----0-0-0-0-0-0-0-0-3-2-0----------:------------------------------
---------------------------3-2-0----:--------------------2---1---2-
---------------------------------2-0:-----1---0---1------2---1---2-
------------------------------------:-----2---1---2------2---1---2-
------------------------------------:-----2---1---2----------------
------------------------------------:---0--------------0-----------
\ / \__________/
\__________/ \/
\/ repeat
repeat 4 time twice
-----------------------------------------------------3-2-0--------
------------------------------------------------------------3-2---
---1---0---1----------------------------1---0---1-----------------
---2---1---2----------------------------2---1---2-----------------
---2---1---2----2-2-2-2-2-2-2-2---------2---1---2-----------------
--0-------------------------------b3-0----------------------------