WXNX
      ----------
YPPRM ) CPRMNXRC
       -XPPCW
        =====
        WPYYHX
       -MCPWRX
        ======
         WYMMPR
        -WMPWCN
         ======
          WPCMNC
         -MCPWRX
          ======
           WNTYW

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