C31231211111211111312133313331333133313331333133321123231323313221   >>    C3123121111121111131213331333133313331333133313332112323132331322   <<    C31231211111211111312133313331333133313331333133321123231323313223   >>      C31231211111211111312133313331333133313331333133321123231323313222   >>