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.

Q: ['c', '317', 'z', 'z', 'h', '227', '439', 'x', 'f']

A: 1, 2, 3, 4, 7, 9
****
Q: ['r', '495', '383', 'd', '369', '323', 'e', 'c', '149', 'q', '487', 'q', 'c']

A: 1, 2, 3, 4, 5, 6, 7, 8, 9
****
Q: ['w', '101', 'q', '201', '145', 'r', 'f', '45', 'e', '61']

A:
0, 1, 2, 4, 5, 6
****