UQYA
      ----------
 AYAA ) UQTNFHQF
       -HAXAQ
        =====
         QYNUH
        -XAHAU
         =====
          YYUAQ
         -QANAH
          =====
           AHFTF
          -YAFAN
           =====
            HATA

base: 10
symbols: ACFHNQTUXY
difficulty: intermediate
missing: C