LCX
     ---------
XULC ) MLXCLCX
      -MGJLF
       =====
        CJMLC
       -JCXNC
        =====
         LLQFX
        -LNQQC
         =====
          CXJJ

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