LEQ
       +---------
FLMEMF | XXCMMMLY
        -FLMEMF
         ======
         LFYCXEL
        -LYEMYLY
         =======
          EECQMCY
         -EEQMFEE
          =======
            EEEQE

base: 8
letters: CEFLMQXY
difficulty: easy
restrictions: no multiplication