C2221232323213331311331333133313231333132313331333121313232313121321321   >>    C222123232321333131133133313331323133313231333133312131323231312132132   <<    C2221232323213331311331333133313231333132313331333121313232313121321323   >>      C2221232323213331311331333133313231333132313331333121313232313121321322   >>