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: ['291', 'p', '261', 'z', '21', 'w', 't', '417']

A: 1, 2, 4, 6, 7, 9
****
Q: ['487', 'x']

A: 4, 7, 8
****
Q: ['353', '469', '463', '95', '429', 'm', '235', '209', '219', 'w', '63', 'd', 'p', 'd']

A:
0, 1, 2, 3, 4, 5, 6, 9
****