NUNN
      ----------
FRTTF ) RTUFNQNJ
       -NCTTN
        =====
        FNUFTQ
       -FNHTTU
        ======
          LTUCN
         -NCTTN
          =====
           NUCTJ
          -NCTTN
           =====
            FCTL

base: 10
symbols: CFHJLNQRTU
difficulty: intermediate
restrictions: no multiplication