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]: ['z', 'v', 't', 'm', '51', 'e', 'l', 'l', '83', '301', '21', '347', 'm', '41', 'b']
[EX A]: 0, 1, 2, 3, 4, 5, 7, 8

[EX Q]: ['51', '461', '343', '15', '209', '51']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 9

[EX Q]: ['t', '101', 'j', 'r', 'p', '199', 'o', '117', 'y', 'e', '45', '213', 'x', '491']
[EX A]:
0, 1, 2, 3, 4, 5, 7, 9