C2221232323213331311331333133313231333132313232313123232322312231   >>    C222123232321333131133133313331323133313231323231312323232231223   <<    C2221232323213331311331333133313231333132313232313123232322312233   >>      C2221232323213331311331333133313231333132313232313123232322312232   >>