3 r O i u y-tr e-3-6-- [3u]-[3d]-[3a]-[3O]- 3 u [3i] u [3Y]-[3u]- [6u]-[6f]-[6s]-[6p]- 6 u [6i] u [6Y]-[6u]- [3u]-[3d]-[3a]-[3O]- 3 u [3i] u [3Y]-[3u]- [6u]-[6f]-[6s]-[6p]- 6 p [6a] p [6O]-[6p]- [9i]-[9p]-[9O]-[9p]- 9 O [9p] O [9p]-[9i]- [8u]-[8p]-[8O]-[8p]- 8 O [8p] O [8p]-[8i]- [7u]-[7d]-[7a]-[7O]- 7 i u y t r-eW e-3-6-- [6p] a s - p a s [6a]--p-- 6 p p o o i i u [9u]--y-- 9 a a p p O O- 0 i i u u-- 7 u a O u y-tr e-3-6-- [6p] a s - p a s [6a]--p-- 6 p p o o i i u [9u]--y-- [9y] i-p-O p- [8t] u-p-O p- 7 u a O u y-t r e-3-6