In this task, you are given an input list A. You need to extract and sort the unique digits used in the list in ascending order. Return -1 if there is no digit in the list.

['159', 'y', '369', 'r', '341', '23', 's', '209', 'l', 's', '473']
0, 1, 2, 3, 4, 5, 6, 7, 9

['51', '461', '343', '15', '209', '51']
0, 1, 2, 3, 4, 5, 6, 9

['i', '71', '419', 'u', '97', 'v', '247', '349', '71']

1, 2, 3, 4, 7, 9