C2221232323213331311331333133313231323133313231123312331123123111   >>    C222123232321333131133133313331323132313331323112331233112312311   <<    C2221232323213331311331333133313231323133313231123312331123123113   >>      C2221232323213331311331333133313231323133313231123312331123123112   >>