XTW
      ---------
FLQHW ) HFLLQQW
       -XJQYJ
        =====
         WYTXQ
        -TXQLQ
         =====
          EFXLW
         -WHJQX
          =====
           QFXX

base: 10
symbols: EFHJLQTWXY
difficulty: intermediate
restrictions: no multiplication