C31231211111211111312133313331333133313331333133321123231323331323132322132221   >>    C3123121111121111131213331333133313331333133313332112323132333132313232213222   <<    C31231211111211111312133313331333133313331333133321123231323331323132322132223   >>      C31231211111211111312133313331333133313331333133321123231323331323132322132222   >>