C2221232323213331311331333133313231333132313331333121313233322223111   >>    C222123232321333131133133313331323133313231333133312131323332222311   <<    C2221232323213331311331333133313231333132313331333121313233322223113   >>      C2221232323213331311331333133313231333132313331333121313233322223112   >>