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]: ['t', '251', 'b', '241', 'z', '255']
[EX A]: 1, 2, 4, 5

[EX Q]: ['x', 'x', '145', 'p', '11', 'j', 'e', '93', '213', '89', '445', 'z', 'z']
[EX A]: 1, 2, 3, 4, 5, 8, 9

[EX Q]: ['d', '393', 'y', '307', 's', '31', 'h']
[EX A]:
0, 1, 3, 7, 9