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.

['197', 'q']
1, 7, 9

['39', '461', '163', '379', '331', '137', 'g', 'm']
1, 3, 4, 6, 7, 9

['q', 'm', '209', 'm', '491', 'z', 'k', '265', 'i', '331']

0, 1, 2, 3, 4, 5, 6, 9