Detailed Instructions: 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: ['o', '23', '273', 'q', 'r', '311', 'g', 'w', '287', '73', 'w']
A:
1, 2, 3, 7, 8