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.

['23', 'p', '409', '305', 'z', 'q', '295', '391']
0, 1, 2, 3, 4, 5, 9

['i', '249', '287']
2, 4, 7, 8, 9

['379', 'n']

3, 7, 9