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: ['q', 'u', '199', 'v', '249']

A: 1, 2, 4, 9
****
Q: ['t', '493', 's', 'f', '279', 'f']

A: 2, 3, 4, 7, 9
****
Q: ['x', '123', '291', 'd', 'u', '225']

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