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]: ['229', 'x', '49', 'p', '73', '77', '337', '497']
[EX A]: 2, 3, 4, 7, 9

[EX Q]: ['f', '367', 'w', '227', '201', 'n', '213', '11']
[EX A]: 0, 1, 2, 3, 6, 7

[EX Q]: ['319', '419', '31', '81', '25']
[EX A]:
1, 2, 3, 4, 5, 8, 9