JNH
      +---------
TJHMM | PCLYMTJY
       -MMJNMC
        ======
         JHMGPJ
        -JLGJML
         ======
          YHHLPY
         -YLJPEN
          ======
           CJMPM

base: 11
letters: CEGHJLMNPTY
difficulty: easy
restrictions: no multiplication