FWM
      ----------
HWYGF ) HYCWGCYF
       -HLGYLQ
        ======
         CHMGMY
        -CCGFCY
         ======
          QCGFLF
         -QQMFXG
          ======
           MHFCQ

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