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]: ['s', 'd']
[EX A]: -1

[EX Q]: ['h', '475', 'x', '53', '461', 'c']
[EX A]: 1, 3, 4, 5, 6, 7

[EX Q]: ['y', 'v', '195', 'z', 'b', 'o', 'v', '185', 'x']
[EX A]:
1, 5, 8, 9

