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.

['x', '281', 'n', '385', '435', 'l', 's', '445', 'n', 'n', '133']
1, 2, 3, 4, 5, 8

['h', 't', 'h', 'i', 'c', '441', '117', '463', 'r']
1, 3, 4, 6, 7

['487', 'x']

4, 7, 8