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]: ['95', '205', 'c', '101']
[EX A]: 0, 1, 2, 5, 9

[EX Q]: ['y', '301', 'c', 'l', 'x', '257', 'l', '1', 'r', '127', 'f', '157', '91', '423']
[EX A]: 0, 1, 2, 3, 4, 5, 7, 9

[EX Q]: ['459', 'j', '297', '481', '389', '319', 'p']
[EX A]:
1, 2, 3, 4, 5, 7, 8, 9