YJL
      ---------
QEFWL ) WQEEFFL
       -YXFHX
        =====
         LHJYF
        -JYFEF
         =====
          TQYEL
         -LWXFY
          =====
           FQYY

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