C2221232323213331311331333133313231333132313331333121313233133321111   >>    C222123232321333131133133313331323133313231333133312131323313332111   <<    C2221232323213331311331333133313231333132313331333121313233133321113   >>      C2221232323213331311331333133313231333132313331333121313233133321112   >>