1)--------------------10--12--------------------------------
2)----------------10---------10-12-10^------------------
3)--9-11-9-11----------------------------------------------
1)-----------------------10--12-14-12-14--17-17^----------
2)-------------------10---------------------------------------------
3)-11-9-11-9-11------------------------------------------------
1)-----------------------10--12---14----------------------
2)-------------------10-----------------------12-10-10^--------
3)-11-9-11-9-11-------------------------------------------------
1)----------------------10--12-14-12-14^------------------
2)-------------------10------------------------------------------
3)-11-9-11-9-11----------------------------------------------