MWWY
     ----------
MEUX ) EUYWMXJN
      -EWGGQ
       =====
        QGUQX
       -QYEYJ
        =====
         QGWYJ
        -QYEYJ
         =====
          QYNNN
         -QNUWY
          =====
           MNXY

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