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

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