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]: ['o', 'f', 'x', '239']
[EX A]: 2, 3, 9

[EX Q]: ['q', '17', '497', '69', 'n', '25', 'a', 'j', 'c', 'j', '303', '453', 'k', 'h']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['171', 'h', '53', 'o', 'q']
[EX A]:
1, 3, 5, 7