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.

['397', 'x', 'e', '179', '105', '381']
0, 1, 3, 5, 7, 8, 9

['311', '147', 'a', '149', 'h']
1, 3, 4, 7, 9

['15', '381', '349']

1, 3, 4, 5, 8, 9