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.

['i', '249', '287']
2, 4, 7, 8, 9

['219', '127', '449', 'u', 'g']
1, 2, 4, 7, 9

['s', 'r', 'v', 'g', 'q', '131', 'y', '417', '183', 'c']

1, 3, 4, 7, 8