C2221232323213331311331333133313231333132313331333121313233121323312331231   >>    C222123232321333131133133313331323133313231333133312131323312132331233123   <<    C2221232323213331311331333133313231333132313331333121313233121323312331233   >>      C2221232323213331311331333133313231333132313331333121313233121323312331232   >>