C2221232323213331311331333133313231323133313231322213113121121121   >>    C222123232321333131133133313331323132313331323132221311312112112   <<    C2221232323213331311331333133313231323133313231322213113121121123   >>      C2221232323213331311331333133313231323133313231322213113121121122   >>