????????
      ----------
YQMJG ) XQPXJJGJ
       -XXJQQG
        ======
         MXJURG
        -MMYPPM
         ======
          PPRGQJ
         -PPMYYQ
          ======
          ??????

base: 10
symbols: GJMPQRUWXY
missing: W
difficulty: medium
hints: U << M, M << W