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]: ['431', '245', '23', 'c', '185', 'k', '155', '163', 'e', '35', 'r', '175', '163']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 8

[EX Q]: ['n', '319', 's', '325', '177', '161', '43', 'g', 'o', '59', 'w', 'y', 'g', 'm']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['345', '393', 'v', 'l', 'b', 'd', 'k', 'q', 'x']
[EX A]:
3, 4, 5, 9