|-0---0---0---------------------------------------0---0---0-------
|---4---4---0-3-1-------------0---------0-1---------4---4---0-3-1-
|-----------------2---------2---------1---------------------------
|-------------------------2---------2-----------2-----------------
|-----------------------3-----------------------------------------
|-----------------------------------------------------------------


|-------------------------0---0---0-------------------
|----------0-------1-0------4---4---0-3-1-------------
|2-------2-------------2------------------2---------2-
|------2---------2--------------------------------2---
|----3------------------------------------------3-----
|-----------------------------------------------------



|------------------0---0---0-------------------
|0-------0-1---------4---4---0-3-1-------------
|------1---------------------------2---------2-
|----2-----------2-------------------------2---
|----------------------------------------3-----
|----------------------------------------------