C2221232323213331311331333133313231323133313121121132323213222211   >>    C222123232321333131133133313331323132313331312112113232321322221   <<    C2221232323213331311331333133313231323133313121121132323213222213   >>      C2221232323213331311331333133313231323133313121121132323213222212   >>