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

 ----2-2---5-4-0-------------2-0---------
 --0-------------------3-3-------3-2---2-
 4-----------------2-3---------------2---
 --------3-------3---------3-------------