UMMQ
     ----------
UWGX ) WGQMUXYJ
      -WMNNL
       =====
        LNGLX
       -LQWQY
        =====
         LNMQY
        -LQWQY
         =====
          LQJJJ
         -LJGMQ
          =====
           UJXQ

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