C2221232323213331311331333133313231333132313331333121313233322322111   >>    C222123232321333131133133313331323133313231333133312131323332232211   <<    C2221232323213331311331333133313231333132313331333121313233322322113   >>      C2221232323213331311331333133313231333132313331333121313233322322112   >>