????????
      +---------
HARAC | JARNWRCC
       -HARAC
        =====
        WYYEHR
       -ACYHAE
        ======
         AYAWHC
        - CJAJR
         ======
           NYFWC
          -HARAC
           =====
           ?????

base: 10
letters: ACEFHJNRWY
difficulty: easy