C2221232323213331311331333133313231333132333112323312131133223321   >>    C222123232321333131133133313331323133313233311232331213113322332   <<    C2221232323213331311331333133313231333132333112323312131133223323   >>      C2221232323213331311331333133313231333132333112323312131133223322   >>