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: ['a', '399', 's', 'e', '495', 'd', 'f', 'a', '323']

A: 2, 3, 4, 5, 9
****
Q: ['173', 'r', 'a', 'n', 'h', 'o', 'w', '135', '321', '59', 'r', '295', 'r']

A: 1, 2, 3, 5, 7, 9
****
Q: ['g', 'y', '489', 'e']

A:
4, 8, 9
****