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: ['u', '465', '129', 'o']

A: 1, 2, 4, 5, 6, 9
****
Q: ['d', '25', '323', 'k', 'e']

A: 2, 3, 5
****
Q: ['431', '449', '205']

A:
0, 1, 2, 3, 4, 5, 9
****