3A2B
      +---------
A3781 | 92957A06
       -A3781
        =====
        38B11A
       -3A7694
        ======
         1945A0
        -133B91
         ======
          155B96
         -129482
          ======
           39529

base: 12
letters: 0123456789AB
difficulty: intermediate