(defun main (&rest argv)
  (declare (ignorable argv))
  (let* ((n (read))
         (p (make-array n :element-type 'integer)))
    (dotimes (i n) (setf (aref p i) (read)))
    (dotimes (i n)
      (let ((val (aref p i)))
        (if (= val 2)
            (format t "2~%")
            (format t "~d~%" (* (1- val) (1- val))))))))

(main)