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]: ['u', 'm', 'n', 'h', 'u']
[EX A]: -1

[EX Q]: ['59', '437', '145', '165', '217', 'l', '185', '495', 'z']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 8, 9

[EX Q]: ['m', 'b', 'k', 'v', 'f', 'j', 't', '385', '229', '287']
[EX A]:
2, 3, 5, 7, 8, 9