1-----------------------------------------------------------
2-----------------------------------------------------------
3-----------------------------------------------------------
4-----------5-5----3-3--------------------------------------
5-----------------------5-5---------------------------------
6--3-3------------------------------------------------------
x4
1------------------------------------------------------------
2------------------------------------------------------------
3----------5-5--3-3------------------------------------------
4---------------------5-5------------------------------------
5----3-3-----------------------------------------------------
6------------------------------------------------------------
x2
1-----------------------------------------------------------
2-----------------------------------------------------------
3-----------------------------------------------------------
4-----------5-5----3-3--------------------------------------
5-----------------------5-5---------------------------------
6--3-3------------------------------------------------------
x2
1-----------------------------------------------------------
2-----------------------------------------------------------
3---------7-7--5-5------------------------------------------
4-------------------7-7-------------------------------------
5--5-5------------------------------------------------------
6-----------------------------------------------------------
1------------------------------------------------------------
2------------------------------------------------------------
3----------5-5--3-3------------------------------------------
4---------------------5-5------------------------------------
5----3-3-----------------------------------------------------
6------------------------------------------------------------
1-----------------------------------------------------------
2-----------------------------------------------------------
3-----------------------------------------------------------
4-----------5-5----3-3--------------------------------------
5-----------------------5-5---------------------------------
6--3-3------------------------------------------------------