RNPN
      ----------
YHHXW ) MHXWPNXM
       -NHHMR
        =====
        RHYYTN
       -WMHRXN
        ======
         RYWWHX
        -RWHRMP
         ======
          RHMWPM
         -WMHRXN
          ======
           RPCYR

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