C2221232323213331311331333133313231333132333112323132332323211312221   >>    C222123232321333131133133313331323133313233311232313233232321131222   <<    C2221232323213331311331333133313231333132333112323132332323211312223   >>      C2221232323213331311331333133313231333132333112323132332323211312222   >>