HWL
      ----------
FWJMH ) FJYWMYJH
       -FGMJGP
        ======
         YFLMLJ
        -YYMHYJ
         ======
          PYMHGH
         -PPLHXM
          ======
           LFHYP

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