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: ['r', '495', '383', 'd', '369', '323', 'e', 'c', '149', 'q', '487', 'q', 'c']

A: 1, 2, 3, 4, 5, 6, 7, 8, 9
****
Q: ['v', 't', '81', '223', 'b', 'b', '313', '151', '63']

A: 1, 2, 3, 5, 6, 8
****
Q: ['255', 'u', 's', 'g', '445']

A:
2, 4, 5
****