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]: ['265', 'x', '109', '319', 's', 'w', '211']
[EX A]: 0, 1, 2, 3, 5, 6, 9

[EX Q]: ['w', '13', 'b', '455', 'b', 'k']
[EX A]: 1, 3, 4, 5

[EX Q]: ['111', '77', '319', '43', '23', 'i', 'y', 'f', '95', '473', 'x', 'm', 'c', '233']
[EX A]:
1, 2, 3, 4, 5, 7, 9