(defconstant +inf+ 9876543218987654321)

(defun main (&rest argv)
  (declare (ignorable argv))
  (let* ((n (read))
         (s (make-array n :element-type 'integer)))
    (dotimes (i n) (setf (aref s i) (read)))
    (let* ((m (read))
           (d (make-array (list n n) :element-type 'integer :initial-element +inf+))
           (res +inf+))
      (dotimes (i n) (setf (aref d i i) 0))
      (dotimes (i m)
        (let* ((a (read))
               (b (read))
               (c (read)))
          (setf (aref d a b) c
                (aref d b a) c)))
      (dotimes (i n)
        (dotimes (j n)
          (dotimes (k n)
            (setf (aref d j k)
                  (min (aref d j k)
                       (+ (aref d j i)
                          (aref d i k)))))))
      (loop for i from 1 below (1- n) do
            (loop for j from 1 below (1- n) do
                  (unless (= i j)
                          (setq res (min res (+ (aref d 0 i)
                                                (aref s i) (aref d i j)
                                                (aref s j) (aref d j (1- n))))))))
      (format t "~d~%" res))))

(main)