WNEP
      +---------
 PEPP | WNCFTRNT
       -RPJPN
        =====
         NEFWR
        -JPRPW
         =====
          EEWPN
         -NPFPR
          =====
           PRTCT
          -EPTPF
           =====
            RPCP

base: 10
letters: CEFJMNPRTW
writeup: writeups/00
difficulty: easy
missing: M