(defconstant +mod998+ 998244353)

(defun %mod-expt (a n m)
  (let ((result 1))
    (loop while (> n 0)
          when (oddp n)
            do (setq result (mod (* result a) m))
          do (setq a (mod (* a a) m))
             (setq n (ash n -1)))
    result))

(defun main (&rest argv)
  (declare (ignorable argv))
  (let* ((a (read))
         (n (read)))
    (format t "~d~%~d~%" +mod998+ (%mod-expt a n +mod998+))))

(main)