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