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: ['387', '7', '93', '105', '181']

A: 0, 1, 3, 5, 7, 8, 9
****
Q: ['j', 'w', 'h', 'r', 'w', 'h', 'd', 'f', '81', 'g', '145']

A: 1, 4, 5, 8
****
Q: ['367', '371', '375', '15', 'g', '273', '7', '193', 'v', 'i']

A:
1, 2, 3, 5, 6, 7, 9
****