RRLM
      ----------
RMLNM ) CNLLRPXR
       -MNCLR
        =====
        UPUPPP
       - MNCLR
        ======
         RMUPCX
        -RNUXUN
         ======
          ULXMUR
         -UMMMRU
          ======
           UCLLU

base: 8
symbols: CLMNPRUX
difficulty: intermediate
restrictions: no multiplication