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]: ['239', '439']
[EX A]: 2, 3, 4, 9

[EX Q]: ['385', 'k', 'a', 't', 'o', 'b', 'g', 'u', '319', 'e', '315', '365']
[EX A]:
1, 3, 5, 6, 8, 9