????????
      ----------
RUGJH ) PYTUWPWJ
       -RUGJH
        =====
         GPNJP
        -WUMXR
         =====
         HJXTHW
        -HPQHTY
         ======
           QXJUJ
          -XLGLP
           =====
           ?????

base: 14
symbols: GHJLMNPQRTUWXY
difficulty: medium