C2221232323213331311331333133313231333132313331333121313233132312322231   >>    C222123232321333131133133313331323133313231333133312131323313231232223   <<    C2221232323213331311331333133313231333132313331333121313233132312322233   >>      C2221232323213331311331333133313231333132313331333121313233132312322232   >>