C2221232323213331311331333133313231323133313231123312331121322211   >>    C222123232321333131133133313331323132313331323112331233112132221   <<    C2221232323213331311331333133313231323133313231123312331121322213   >>      C2221232323213331311331333133313231323133313231123312331121322212   >>