C2221232323213331311331333133313331323133311212322132221333131211   >>    C222123232321333131133133313331333132313331121232213222133313121   <<    C2221232323213331311331333133313331323133311212322132221333131213   >>      C2221232323213331311331333133313331323133311212322132221333131212   >>