(defconstant +mod998+ 998244353)
(defconstant +mod107+ 1000000007)
(defun mod-exp (a n m)
  (let ((result 1)
        (base (mod a m)))
    (loop while (> n 0)
          do (when (oddp n)
                   (setf result (mod (* result base) m)))
          (setf base (mod (* base base) m))
          (setf n (floor n 2)))
    result))
(defun main (&rest argv)
  (declare (ignorable argv))
  (let* ((h (read))
         (w (read))
         (m (read))
         (a 1)
         (b 1))
    (loop for i below (1- (+ h w))
          do (setq a (* a (- m i)))
             (setq b (* b (1+ i))))
    (loop for i below (1- h)
          do (setq a (* a (- (+ h w) i 2)))
             (setq b (* b (1+ i))))
    (princ (mod (* (floor a b) (mod-exp m (* (1- h) (1- w)) +mod998+)) +mod998+))
    (terpri)))
(main)