C2221232323213331311331333133313231333132313221323131211212312231   >>    C222123232321333131133133313331323133313231322132313121121231223   <<    C2221232323213331311331333133313231333132313221323131211212312233   >>      C2221232323213331311331333133313231333132313221323131211212312232   >>