y-y-yuiop ds d s d p-o p- y-y-yuiop ds d i o p--p d j j j j - j J l J j j-f g h-h-h-f g h h g f d - p d j j j j - j J lJj j j-f g h-h-h-f g h jhg f d - p y - u i-o- p P p o i-y- u-u-u y T y u---- y - u i-o- p P p o i-y- u-o-i - u y---- d-d-s s s- a a a a p p p - s s s a-a- p p o p--- d-d-s s s- a a a a p p p - s s s a-a- p p o p--- y--i-p- o---i o p-i-o-u- y---p- d--s-d- f---g f d--p-s- d