????????
      ----------
LLQXY ) JPPPXWTX
       -PPTLY
        =====
        XYXLXW
       -UJJLJY
        ======
          XJQWTX
         -XPPYQY
          ======
          ??????

base: 11
symbols: FJLPQRTUWXY
missing: F R
difficulty: medium
hints: R << F, F << W