JNL
      ----------
JXYJJ ) MJMLNQWP
       -MYNWPY
        ======
         LXWYYW
        -EQEWXQ
         ======
          EMQMJP
         -ENEXMN
          ======
           EPMNW

base: 11
symbols: CEJLMNPQWXY
difficulty: intermediate
restrictions: no multiplication
missing: C