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]: ['223', '71']
[EX A]: 1, 2, 3, 7

[EX Q]: ['205', '107', 'z']
[EX A]: 0, 1, 2, 5, 7

[EX Q]: ['227', 's', '299', '415', 'e', '137', '117', '225']
[EX A]:
1, 2, 3, 4, 5, 7, 9