e------------------------------------------------------------------------|
h------------------------------------------------------------------------|
g------------------------------------------------------------------------|
d------------------------------------------------------------------------|
a-7-7-7-7-7-7-8--8-8-8-8-8-8-10--10-10-10-10-10-10-10--10-10-10-10-10-10-|
e-5-5-5-5-5-5-5--5-5-5-5-5-5-8 -- 8- 8- 8- 8- 8- 8- 7-- 7- 7- 7- 7- 7- 7-|