C31231211111211111312133313331333133313331333133321123231323331323132322121311   >>    C3123121111121111131213331333133313331333133313332112323132333132313232212131   <<    C31231211111211111312133313331333133313331333133321123231323331323132322121313   >>      C31231211111211111312133313331333133313331333133321123231323331323132322121312   >>