C2221232323213331311331333133313231333132333112323132332323231322331   >>    C222123232321333131133133313331323133313233311232313233232323132233   <<    C2221232323213331311331333133313231333132333112323132332323231322333   >>      C2221232323213331311331333133313231333132333112323132332323231322332   >>