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]: ['x', '325', 'i', 'n', 'i', 'w', 't']
[EX A]: 2, 3, 5

[EX Q]: ['7', 'x', '365', 't', 'l', '253', '219', '363', '165', 'a', 'g', '347', 'y', 'w', '63']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['479', 's', 'r', 'q', '383', '459', 'b', 'a', '59', '159', '17', 'a', '175']
[EX A]:
1, 3, 4, 5, 7, 8, 9