(defun r (n c &optional (s ""))
  (if (> n 0)
      (r (- n 1) c (concatenate 'string c s))
    s))

(defun s (n) (concatenate 'string (r (truncate n 2) " ") "+"))

(defun p (n)
  (dotimes (x n)
    (if (= x (truncate n 2))
	(write-line (r n "+"))
      (write-line (s n)))))


(p (parse-integer (read-line)))