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]: ['l', '269', 'l', '379', '359']
[EX A]: 2, 3, 5, 6, 7, 9

[EX Q]: ['t', 'y', '331']
[EX A]: 1, 3

[EX Q]: ['365', '393', '457', '189', '307', 'q', '139', 'y', '421', 'b', 'b']
[EX A]:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9