e|--9--------9------9----10-----9-------9-------9----10---|
B|-----7--7----7--7----7-----7----7--7-----7--7---7-----7-|


e|--8--------8------8----9------8-------8-------8-----9---|  repeat as many times
B|-----6--6----6--6----6-----6----6--6-----6--6---6-----6-|  as you want.