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]: ['7', 'x', '365', 't', 'l', '253', '219', '363', '165', 'a', 'g', '347', 'y', 'w', '63']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['71', 't', '267', 'x', 'l', '95', '439', '51', 'i', '497', '469', 'k', '341', 'y']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['o', 'k', 'r', '427', 'l', 'i', 'p', 'y', '367']
[EX A]:
2, 3, 4, 6, 7