RNWN
      ----------
CHHMP ) THMPWNMT
       -NHHTR
        =====
        RHCCXN
       -PTHRMN
        ======
         RCPPHM
        -RPHRTW
         ======
          RHTPWT
         -PTHRMN
          ======
           RWYCR

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