WYWY
       ------------
QYWXJW ) MRRQYGWMGW
        -MMYWXYW
         =======
          WJJQWXM
         -PYGWJXW
          =======
           MEJMERG
          -MMYWXYW
           =======
            WMREXYW
           -PYGWJXW
            =======
             QQMEYX

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