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]: ['431', '245', '23', 'c', '185', 'k', '155', '163', 'e', '35', 'r', '175', '163']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 8

[EX Q]: ['t', 'v', '469', 'n']
[EX A]: 4, 6, 9

[EX Q]: ['j', '355', 'w', 'f', 'b', '183', '327', '277']
[EX A]:
1, 2, 3, 5, 7, 8