4698
      +---------
D6ED0 | 1F542C52
       -D6ED0
        =====
        4ABB6C
       -41278E
        ======
         6500B5
        -6034B2
         ======
          069732
         -95B643
          ======
           3CC69

base: 16
letters: 0123456789ABCDEF
difficulty: medium