I----------------------------------------------I
I----------------------------------------------I
I-9(b9)8s-7-7------------(b9)8-7-------------------I
I-9(b9)8s-7-7--7-8-(b9)5---(b9)8-7--7-8-(b9)-5v--7-----I
I-77-6s-5-5--7-8-(b9)5---7-6-5--7-8-(b9)-5v--7-----I
I------------5-6-7-3----------5-6-7--3v--5-----I