e---------------------------------------------------------------------------|
b---------------------------------------------------------------------------|
g---------------------------------------------------------------------------|
d---------------------------------------------------------------------------|
a--xx-12-12-12-7-7-7-9-9-9-5-5-5-x-x-x-x-12-12-12-7-7-7-9-9-9-5-5-5-x-x-----|
e--xx-12-12-12-7-7-7-9-9-9-5-5-5-x-x-x-x-12-12-12-7-7-7-9-9-9-5-5-5-x-x-----|