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]: ['251', '173', '301', '339', '267', 'p', '347']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['213', '51', '31', 'n', '89', '113', '315', '195', 'd', 'x', '105', '217', '295']
[EX A]: 0, 1, 2, 3, 5, 7, 8, 9

[EX Q]: ['485', '265', 'g', '115', '333', 'g', 'y', '405', '61', '133', 'v', '403', '109', '67', '487']
[EX A]:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9