WGT
       +---------
LCUJMF | MFTUYCCL
        -LCUJMF
         ======
         GWCJYMC
        -WCTLUMY
         =======
          JFTLYCL
         -FMCMFJY
          =======
           JULCTL

base: 10
letters: CFGJLMTUWY
difficulty: intermediate
restrictions: no multiplication