C2221232323213331311331333133313231333132313221323131211212212231   >>    C222123232321333131133133313331323133313231322132313121121221223   <<    C2221232323213331311331333133313231333132313221323131211212212233   >>      C2221232323213331311331333133313231333132313221323131211212212232   >>