C2221232323213331311331333133313231333132313331333121313233111212231   >>    C222123232321333131133133313331323133313231333133312131323311121223   <<    C2221232323213331311331333133313231333132313331333121313233111212233   >>      C2221232323213331311331333133313231333132313331333121313233111212232   >>