6-6-6 u p a [6s] p - 6 u p a [6s] p - 6 u p a [6s]-a p [5s]-a p [4f]-f-[3f]-d f [2g] g - 2 g f d [6g] f f-6 f d s [3a]-f-[3s]-d- [6f]--6 f d f [2g] g - 2 g f d [6g] f f-6 f d s [3a]-f-[3s]-a- [6p]--6 u p a [6s] p - 6 u p a [6s] p - 6 u p a [6s]-a p [5s]-a p [4f]-f-[3f]-d f [2g] g - 2 g f d [6g] f f-6 f d s [3a]-f-[3s]-d- [6f]--6 f d f [2g] g - 2 g f d [6g] f f-6 f d s [3a]-f-[3s]-a- [6p]