6327
      +---------
93DE7 | AF897D45
       -93DE7
        =====
        580A0D
       -4AD9EC
        ======
         5B44E4
        -55EEC1
         ======
          9938B5
         -903386
          ======
           C72E4

base: 16
letters: 0123456789ABCDEF
difficulty: medium
missing: 2