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]: ['k', 'q', 'a', 'u', 'q']
[EX A]: -1

[EX Q]: ['v', 'q', '139', '79', '149', '469', 'g', '239', '221', 'v', '77']
[EX A]: 1, 2, 3, 4, 6, 7, 9

[EX Q]: ['85', '9']
[EX A]:
5, 8, 9