?????????
      -----------
GFPYY ) FPJWFYGYP
       -WGJYY
        =====
        GFYWFY
       -GWYWYY
        ======
         GYYFYG
        - TTGYY
         ======
           GWYGYP
          -GGWUYY
           ======
           ??????

base: 8
symbols: FGJPTUWY
difficulty: medium