C31231211111211111312133313331333133313331333133321123231323331333132323232311   >>    C3123121111121111131213331333133313331333133313332112323132333133313232323231   <<    C31231211111211111312133313331333133313331333133321123231323331333132323232313   >>      C31231211111211111312133313331333133313331333133321123231323331333132323232312   >>