[8s]--[5a]-- [6p]--[3o]-- [4i]--[8u]-- [4y]--[5r]-- 8 o s f 5 o a d 6 u p s 3 u o a 4 t i p 8 t u o 4 t i p 5 y o a 8 o s f 5 o a d 6 u p s 3 u o a 4 t i p 8 t u o 4 t i p 5 y o a [8s]-u-[5a]-i- [6r]-u-[3o]-o- [4p]-p a [8s]-p o [4p] o i p [5s]-a- 8-f-[5d]-- 6-s-[3f]-- 4-p-[8o] - t [4p] - s [5s]-a- 8-f-[5d]-- 6-s-[3f]-o- [4p]-o i [8o]-t- [4p]-s-[5s]-a- [1s]