9815
      +---------
0B932 | 24693212
       -26A89
        =====
         B2692
        -8A349
         =====
         0B7181
        -083968
         ======
           98442
          -A2867
           =====
            3A32

base: 12
letters: 0123456789AB
difficulty: intermediate
restrictions: no multiplication