C2221232323213331311331333133313231333132313232313123232211122231   >>    C222123232321333131133133313331323133313231323231312323221112223   <<    C2221232323213331311331333133313231333132313232313123232211122233   >>      C2221232323213331311331333133313231333132313232313123232211122232   >>