????????
      ----------
UYFUM ) AAHYFUWA
       -WJAXX
        =====
        YUMYFU
       -YXWJUM
        ======
         YJMHFW
        -YMUXFM
         ======
          YNHXNA
         -YNXNMX
          ======
          ??????

base: 10
symbols: AFHJMNUWXY
difficulty: hard