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: ['43', 'd']

A: 3, 4
****
Q: ['p', 't', '211', 'r', '439', 'h', 'g', 'c', '299', '371']

A: 1, 2, 3, 4, 7, 9
****
Q: ['283', '25', '35', '483']

A:
2, 3, 4, 5, 8
****