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.

['q', 'a', '149']
1, 4, 9

['y', 'o', '287', 'm', 's', '61']
1, 2, 6, 7, 8

['281', 'e', 'q']

1, 2, 8