C2221232323213331311331333133313231333132333112323132332323121122211   >>    C222123232321333131133133313331323133313233311232313233232312112221   <<    C2221232323213331311331333133313231333132333112323132332323121122213   >>      C2221232323213331311331333133313231333132333112323132332323121122212   >>