C2221232323213331311331333133313231333132313331333121313233311322232231   >>    C222123232321333131133133313331323133313231333133312131323331132223223   <<    C2221232323213331311331333133313231333132313331333121313233311322232233   >>      C2221232323213331311331333133313231333132313331333121313233311322232232   >>