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.

['b', 'r', 'n', '89', '379', '283', '27', 's', '361', 'm', 'l']
1, 2, 3, 6, 7, 8, 9

['t', '437', 'o', 'w', 'x', 'e', 'r', 'r', '149', 'd', '391']
1, 3, 4, 7, 9

['x', '107', 'd', '329', 's', 'r']

0, 1, 2, 3, 7, 9