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]: ['287', 'y', 'b', '79', '39', 'l']
[EX A]: 2, 3, 7, 8, 9

[EX Q]: ['e', '307', '191', 'k', 'o', 'j', '99']
[EX A]: 0, 1, 3, 7, 9

[EX Q]: ['223', 'u']
[EX A]:
2, 3