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]: ['r', '495', '383', 'd', '369', '323', 'e', 'c', '149', 'q', '487', 'q', 'c']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 8, 9

[EX Q]: ['w', '13', 'b', '455', 'b', 'k']
[EX A]: 1, 3, 4, 5

[EX Q]: ['k', 'x', '329', 'h', 'c', 'b', '477']
[EX A]:
2, 3, 4, 7, 9