C33331211113313331211113313331333133313223313311211113313222323221   >>    C3333121111331333121111331333133313331322331331121111331322232322   <<    C33331211113313331211113313331333133313223313311211113313222323223   >>      C33331211113313331211113313331333133313223313311211113313222323222   >>