2E04
      +---------
3EBDA | C0E069AC
       -3EBDA
        =====
        5D9ED9
       -6AF3B7
        ======
         72FC4A
        -E9451C
         ======
          DD346C
         -D27066
          ======
           56910

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