75B3
      +---------
E6704 | BE20CDC5
       -718A7
        =====
        E8F78D
       -EB13AC
        ======
          6C3CC
         -82A6B
          =====
           D5EF5
          -001C3
           =====
           EEB18

base: 16
letters: 0123456789ABCDEF
difficulty: medium
missing: 9