????????
      ----------
GLXTL ) TLWHTXWY
       -GLXTL
        =====
         UGPUX
        -GLXTL
         =====
         RLGRHW
        -RTXRQP
         ======
           TUUHY
          -GLXTL
           =====
          ??????

base: 11
symbols: GHLPQRTUWXY
difficulty: medium