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]: ['39', '461', '163', '379', '331', '137', 'g', 'm']
[EX A]: 1, 3, 4, 6, 7, 9

[EX Q]: ['381', '129']
[EX A]: 1, 2, 3, 8, 9

[EX Q]: ['p', '445', '27', 'h', '259', 'd', '363', '337', 'q', 'f', '219']
[EX A]:
1, 2, 3, 4, 5, 6, 7, 9