C2221232323213331311331333133313231323133313231123312332322233211   >>    C222123232321333131133133313331323132313331323112331233232223321   <<    C2221232323213331311331333133313231323133313231123312332322233213   >>      C2221232323213331311331333133313231323133313231123312332322233212   >>