[0p]---[9a]- [0p]---[9a]- [0p]---[9a]- [0p]---[9a]- [qp]---- [9p]---- [0p]---[9a]- [0p]---[9a]- [0p]---[9a]- [0p]---[9a]- [0p]---[9a]- [0p]---[9a]- [qp]---- [9p]---- [0p]---[9a]- [0t]---- p-u e u e a w p-u e u e a w p-u e u e a w p-u e u e a w p-p-p-p 4 p-p y p y p y p-u e u e a- p-u e u e a- p-p-p-p- p-p y p y p y p-u-u-a- p