EELE
       ------------
GGUNHH ) UGHHPLHLRE
        -UUNEPPE
         =======
          UGNRGQL
         -UUNEPPE
          =======
           UWUHURR
          -QGEQHWP
           =======
            UPLGRNE
           -UUNEPPE
            =======
             EUNWUW

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