2911
      +---------
B658A | 02B48269
       -94486
        =====
        BB5762
       -BB80A1
        ======
          689B6
         -361A9
          =====
           64BA9
          -361A9
           =====
            6077

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