MYEC
      -----------
QEUYU ) MCXYUUYQU
       -YXLULM
        ======
         YYUYCY
        -LXEQXX
         ======
          EGYLEQ
         -MXGYXC
          ======
           CLXXUU
          -PQLYQY
           ======
            YMLXL

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