[6p]---- [7a]---- [8s]---- [7a]---- [8s]---- [6p]-S-a-p- [7O] a-d - a- [8s] g-s - p- [7a]-d-s-a- [8s]---- 6-f-d-S- [7a]-d S a - o [8i] u y u i-t- [7y]-i-o-a- [8s]---- [6p]-p a S-d f [7g] - f d-g- 8-f d s f d s [7a]-d-a-o- [8s]