C2221333133313331311233132313331333133313331311233133313311221311211   >>    C222133313331333131123313231333133313331333131123313331331122131121   <<    C2221333133313331311233132313331333133313331311233133313311221311213   >>      C2221333133313331311233132313331333133313331311233133313311221311212   >>