C2221232323213331311331333133313231323133313231123312331123223231   >>    C222123232321333131133133313331323132313331323112331233112322323   <<    C2221232323213331311331333133313231323133313231123312331123223233   >>      C2221232323213331311331333133313231323133313231123312331123223232   >>