C2221232323213331311331333133313231333132313331333121313231223213131   >>    C222123232321333131133133313331323133313231333133312131323122321313   <<    C2221232323213331311331333133313231333132313331333121313231223213133   >>      C2221232323213331311331333133313231333132313331333121313231223213132   >>