C2221232323213331311331333133313231333132313331333121313233121111   >>    C222123232321333131133133313331323133313231333133312131323312111   <<    C2221232323213331311331333133313231333132313331333121313233121113   >>      C2221232323213331311331333133313231333132313331333121313233121112   >>