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: ['475', '19', 'k', '307', '417']

A: 0, 1, 3, 4, 5, 7, 9
****
Q: ['a', '491', '477', '193', 'b', 'l', 'c']

A: 1, 3, 4, 7, 9
****
Q: ['i', '197', 'f', 'q', 'l', 'q', '393', '355']

A:
1, 3, 5, 7, 9
****