C2221232323213331311331333133313231333132313232313123232213232132231   >>    C222123232321333131133133313331323133313231323231312323221323213223   <<    C2221232323213331311331333133313231333132313232313123232213232132233   >>      C2221232323213331311331333133313231333132313232313123232213232132232   >>