C2221333133313331311233132313331333133313331311233133313311213311211   >>    C222133313331333131123313231333133313331333131123313331331121331121   <<    C2221333133313331311233132313331333133313331311233133313311213311213   >>      C2221333133313331311233132313331333133313331311233133313311213311212   >>