WMXC
    ---------
FYE ) FLXWLLX
     -YFXF
      ====
       MHLL
      -EQLQ
       ====
        MWCL
       -MXFF
        ====
         XQMX
        -XMQH
         ====
          EYX

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