C2221232323213331311331333133313231323133313231123312311332212321   >>    C222123232321333131133133313331323132313331323112331231133221232   <<    C2221232323213331311331333133313231323133313231123312311332212323   >>      C2221232323213331311331333133313231323133313231123312311332212322   >>