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]: ['93', '277', '373', 'z', '9', 'r', '251', '207', 'v', 'n']
[EX A]: 0, 1, 2, 3, 5, 7, 9

[EX Q]: ['m', 'n', '481', 'a', '343', '19', 'l', 'l', '477', '71']
[EX A]: 1, 3, 4, 7, 8, 9

[EX Q]: ['41', 'l', 'v', '121', 'y', 'c', '321', '167', '405', 'b', '207', 'k', '211', '283']
[EX A]:
0, 1, 2, 3, 4, 5, 6, 7, 8