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]: ['129', '373', '461', 'h', 'r', '163', '361', '483', '463', 'e', 'z', 'l']
[EX A]: 1, 2, 3, 4, 6, 7, 8, 9

[EX Q]: ['363', '455']
[EX A]: 3, 4, 5, 6

[EX Q]: ['219', '251', '359', 'n', '281', 'f', 'g', '255', '191', 'u', '115']
[EX A]:
1, 2, 3, 5, 8, 9

