C2221232323213331311331333133313231333132313331333121313233123323111   >>    C222123232321333131133133313331323133313231333133312131323312332311   <<    C2221232323213331311331333133313231333132313331333121313233123323113   >>      C2221232323213331311331333133313231333132313331333121313233123323112   >>