C2221232323213331311331333133313231333132313331333121313233213233221131   >>    C222123232321333131133133313331323133313231333133312131323321323322113   <<    C2221232323213331311331333133313231333132313331333121313233213233221133   >>      C2221232323213331311331333133313231333132313331333121313233213233221132   >>