C2221232323213331311331333133313331323132313331333112123122131222211231   >>    C222123232321333131133133313331333132313231333133311212312213122221123   <<    C2221232323213331311331333133313331323132313331333112123122131222211233   >>      C2221232323213331311331333133313331323132313331333112123122131222211232   >>