C2221232323213331311331333133313231333132313331333121313233311331212211   >>    C222123232321333131133133313331323133313231333133312131323331133121221   <<    C2221232323213331311331333133313231333132313331333121313233311331212213   >>      C2221232323213331311331333133313231333132313331333121313233311331212212   >>