C2221232323213331311331333133313231323133313231322213322112323111   >>    C222123232321333131133133313331323132313331323132221332211232311   <<    C2221232323213331311331333133313231323133313231322213322112323113   >>      C2221232323213331311331333133313231323133313231322213322112323112   >>