UYNL
      ----------
HHULM ) UQLMHWYU
       -UUYWM
        =====
         XTUHW
        -YXPXM
         =====
          QWXWY
         -NQWTM
          =====
          HMQYYU
         -HMHNHM
          ======
            XWTU

base: 11
symbols: HLMNPQTUWXY
difficulty: intermediate
restrictions: no multiplication