FFPQ
      +---------
LQYTQ | GQGQCLYJ
       -LQYTQ
        =====
        FXHLLL
       - LQYTQ
        ======
         YCPPGY
        -TJGTXL
         ======
          LLTLLJ
         -LTYQLF
          ======
           PJGXG

base: 11
letters: CFGHJLPQTXY
difficulty: intermediate
restrictions: no multiplication