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]: ['169', '159', '103', '245', '449', 'a', 'w', 'b', '131', '385']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 8, 9

[EX Q]: ['219', 'v', '295', '291', 'n', 'a', '133', 'a', 'y', 'i', 'e', '235', '461']
[EX A]: 1, 2, 3, 4, 5, 6, 9

[EX Q]: ['k', '265', 'g', '99', '83', 'o']
[EX A]:
2, 3, 5, 6, 8, 9