????????
      ----------
YEJUN ) MTFJNMHH
       -YEJUN
        =====
        PMTGRM
       -PTTYRH
        ======
         TNENEH
        -TFEPGY
         ======
          URLQJH
         -TFEPGY
          ======
          ??????

base: 14
symbols: EFGHJLMNPQRTUY
difficulty: medium