e----12-14-16-14--12-14-16-14-11--12-14-16-14-11-12-
B-12------------12--------------12------------------
e-11-9-7
e----12-14-16-14--12-14-16-14-11--12-14-16-14-11-12-
B-12------------12--------------12------------------
e-11-9-7