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]: ['87', '353', '329', '163', 'i', 'd', '287']
[EX A]: 1, 2, 3, 5, 6, 7, 8, 9

[EX Q]: ['i', 'z', '131', '449', '141', 's']
[EX A]: 1, 3, 4, 9

[EX Q]: ['o', '87', '457', '41', '405', 'n', 'v', '251', 'n', 'd', 'u', '231', 'b', '97']
[EX A]:
0, 1, 2, 3, 4, 5, 7, 8, 9