C2221232323213331311331333133313231333132313232222121223323323111   >>    C222123232321333131133133313331323133313231323222212122332332311   <<    C2221232323213331311331333133313231333132313232222121223323323113   >>      C2221232323213331311331333133313231333132313232222121223323323112   >>