EYMH
      +---------
WMHPT | MWYJJYYJ
       -PMEHM
        =====
         WPYPYY
        -WTJQHH
         ======
          EWHWTJ
         -EQPEQE
          ======
           QPQWT

base: 9
letters: EHJMPQTWY
difficulty: intermediate
restrictions: no multiplication