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: ['159', 'y', '369', 'r', '341', '23', 's', '209', 'l', 's', '473']

A: 0, 1, 2, 3, 4, 5, 6, 7, 9
****
Q: ['239', '439']

A: 2, 3, 4, 9
****
Q: ['493', 'l']

A:
3, 4, 9
****
