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.

['y', 'o', '287', 'm', 's', '61']
1, 2, 6, 7, 8

['p', '305', 't', 'x', '497', '209', '151', '89', '53', '189', 'n', '129', 'c', '227', 'p']
0, 1, 2, 3, 4, 5, 7, 8, 9

['e', 's', '271', 'k', 'e', 'y', '89']

1, 2, 7, 8, 9