1----------------------------------------------------------------
2----------------------------------------------------------------
3-------------------------9----------------------------9--11-9---
4-11-11-9-9-7-7-9-9-11-11--11---11-11-9-9-7-7-9-9-11-11-11----11-
5----------------------------------------------------------------
6----------------------------------------------------------------
1-----------------------------
2--------------------10-12----
3---9--9--9--9---9--9---------
4-12-11-12-11--11-11----------
5-----------------------------
6-----------------------------