C31231211111211111312133313331333133313331333133321123231323331313213232211   >>    C3123121111121111131213331333133313331333133313332112323132333131321323221   <<    C31231211111211111312133313331333133313331333133321123231323331313213232213   >>      C31231211111211111312133313331333133313331333133321123231323331313213232212   >>