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]: ['73', '199', '189', '27', 'm', '101', '61', '113', 'y', '169']
[EX A]: 0, 1, 2, 3, 6, 7, 8, 9

[EX Q]: ['7', 'u', 's', '75', 't', 'o']
[EX A]: 5, 7

[EX Q]: ['i', 'l', '249', '405', 'w', '223', '331', '71', 'h']
[EX A]:
0, 1, 2, 3, 4, 5, 7, 9