NNN
      ----------
TNUNP ) TNUWPNUQ
       -TWTXHP
        ======
         TQQNNU
        -TWTXHP
         ======
          TWTQUQ
         -TWTXHP
          ======
             UHQ

base: 9
symbols: HMNPQTUWX
missing: M
difficulty: intermediate
restrictions: no multiplication