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]: ['r', 'u', '83', 'x', '155', '89', 'c', '391', '41', 'o', 'i', '161']
[EX A]: 1, 3, 4, 5, 6, 8, 9

[EX Q]: ['x', '493', 'x', '211', 'n', '143', '277', '191']
[EX A]: 1, 2, 3, 4, 7, 9

[EX Q]: ['273', 'i', '407', '223', '477', '155', 'r', '411', 'y', '239', 'u', '223', 'u', '137', 'g']
[EX A]:
0, 1, 2, 3, 4, 5, 7, 9