C2221232323213331311331333133313231333132313221323131212221123221   >>    C222123232321333131133133313331323133313231322132313121222112322   <<    C2221232323213331311331333133313231333132313221323131212221123223   >>      C2221232323213331311331333133313231333132313221323131212221123222   >>