C2221232323213331311331333133313231323133313231123312311223331121   >>    C222123232321333131133133313331323132313331323112331231122333112   <<    C2221232323213331311331333133313231323133313231123312311223331123   >>      C2221232323213331311331333133313231323133313231123312311223331122   >>