1---- 4---o s d [1f]---s- [5a]--a-- [1o]-o-[4p]-p- [1o] - i [6u]-- [1o]-o-[4p]-p- [1o] - i [6u]-- [1o]-o-[4p]-a- [2s]--[2d]-- [5a]---p a p [5o]--p-a- [4s]--a-p- [3o]---- [2p]--o-i- [6u]---- [1o]-o-[4t]-i- [1u]--[5y]-- [1t]--4-- 1--5-- [1o]-o-[4p]-p- [1o] - i [6u]-- [1o]-o-[4p]-p- [1o] - i [6u]-- [1o]-o-[4p]-a- [2s]--[2d]-- [5a]---p a p [5o]--p-a- [4s]--a-p- [3o]---- [2p]--o-i- [6u]---- [1o]-o-[4t]-i- [1u]--[5y]-- [1t]--4-- 1--5-p- a p [5a] d [1s]