C579
      +---------
0FFFD | E5C45CD6
       -B33A9
        =====
        F1AE9C
       -16113F
        ======
         F9B7ED
        -FF4456
         ======
          C19256
         -26AA5C
          ======
           15387

base: 16
letters: 0123456789ABCDEF
difficulty: medium
missing: 8