C2221232323213331311331333133313231333132313331333121313233131323132121   >>    C222123232321333131133133313331323133313231333133312131323313132313212   <<    C2221232323213331311331333133313231333132313331333121313233131323132123   >>      C2221232323213331311331333133313231333132313331333121313233131323132122   >>