WMWP
      ----------
GMWTU ) TMPWFTJU
       -WUMFJ
        =====
         JYPGT
        -PJXPW
         =====
          TPJGJ
         -WUMFJ
          =====
           FGMYU
          -FGGXY
           =====
             WGU

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