AYMN
      ----------
LULNY ) UYYRYYAA
       -MUURF
        =====
        LMMJHY
       -LARFJL
        ======
          FAHNA
         -RJFUR
          =====
          LHUHFA
         -LHLULH
          ======
            AFRL

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