C2221232323213331311331333133313231333132323132332323331322333321   >>    C222123232321333131133133313331323133313232313233232333132233332   <<    C2221232323213331311331333133313231333132323132332323331322333323   >>      C2221232323213331311331333133313231333132323132332323331322333322   >>