???????
      +--------
XRLHH | UXRFXHC
       -XRLHH
        =====
        TFTFJH
       -TXHTHL
        ======
         XXJUUC
        -XEJEHJ
         ======
         ??????

base: 11
letters: CEFGHJLRTUX
difficulty: medium
hints: G << C
missing: G