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.

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

[EX Q]: ['u', '343', '167', 'a']
[EX A]: 1, 3, 4, 6, 7

[EX Q]: ['213', '51', '31', 'n', '89', '113', '315', '195', 'd', 'x', '105', '217', '295']
[EX A]:
0, 1, 2, 3, 5, 7, 8, 9