C2221232323213331311331333133313231323133313231123312331133213121   >>    C222123232321333131133133313331323132313331323112331233113321312   <<    C2221232323213331311331333133313231323133313231123312331133213123   >>      C2221232323213331311331333133313231323133313231123312331133213122   >>