???????
      ---------
XPTPF ) FFFTXQW
       -XPTPF
        =====
        UEEXFQ
       - XPTPF
        ======
         WLEUTW
        -ETYUYP
         ======
         ??????

base: 11
symbols: EFJLPQTUWXY
difficulty: medium
missing: J