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]: ['455', '447', 'x', '479', 'b', '267', '339', '29', '267']
[EX A]: 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['61', '417', '437', '489', '383', 'n', '11', 'o', 'a', 'v', '37', 'q', '317']
[EX A]: 1, 3, 4, 6, 7, 8, 9

[EX Q]: ['143', '63', '201', 'w', '233', 'x', '481', 'o', 'w']
[EX A]:
0, 1, 2, 3, 4, 6, 8