C2221232323213331311331333133313231333132313221323131212122211323111   >>    C222123232321333131133133313331323133313231322132313121212221132311   <<    C2221232323213331311331333133313231333132313221323131212122211323113   >>      C2221232323213331311331333133313231333132313221323131212122211323112   >>