D573
      +---------
76B36 | BA4A926B
       -76B36
        =====
        368712
       -38A976
        ======
         068CC6
        -00222E
         ======
          8055AB
         -D4E4DC
          ======
           92AB0

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