C2221333133313331311233132313331333133313331311233133313311211113313223123121   >>    C222133313331333131123313231333133313331333131123313331331121111331322312312   <<    C2221333133313331311233132313331333133313331311233133313311211113313223123123   >>      C2221333133313331311233132313331333133313331311233133313311211113313223123122   >>