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.

['391', 'y', '447', '345', '157', '265', 'x', '261', 'm', 'f', 'x', 'x', '379', 'r', 'g']
1, 2, 3, 4, 5, 6, 7, 9

['131', '483', 'k', '387', '451', 'j']
1, 3, 4, 5, 7, 8

['495', '43', 'h', 'q', 's', 'k', '61']

1, 3, 4, 5, 6, 9