Q: 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.
['277', '329', 's', '123', 'z', 'q', 'p', '251', 'j', 'q', '375', '369', 'n']
A:
1, 2, 3, 5, 6, 7, 9