C2221232323213331311331333133313231333132313221323131212121113121231   >>    C222123232321333131133133313331323133313231322132313121212111312123   <<    C2221232323213331311331333133313231333132313221323131212121113121233   >>      C2221232323213331311331333133313231333132313221323131212121113121232   >>