C2221232323213331311331333133313231333132313331333121313232113133121   >>    C222123232321333131133133313331323133313231333133312131323211313312   <<    C2221232323213331311331333133313231333132313331333121313232113133123   >>      C2221232323213331311331333133313231333132313331333121313232113133122   >>