C2221232323213331311331333133313231333132313221323131212122313111221   >>    C222123232321333131133133313331323133313231322132313121212231311122   <<    C2221232323213331311331333133313231333132313221323131212122313111223   >>      C2221232323213331311331333133313231333132313221323131212122313111222   >>