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]: ['345', 'h', '9']
[EX A]: 3, 4, 5, 9

[EX Q]: ['k', 'a', '437', '461', 'b', '341', '175']
[EX A]: 1, 3, 4, 5, 6, 7

[EX Q]: ['b', 'a', '91', '99', '285']
[EX A]:
1, 2, 5, 8, 9