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', '439', 't', '29', '425', '289']
2, 3, 4, 5, 8, 9

['y', '101', 'g', 'c', 'z']
0, 1

['s', 'q', '477', 'x', '239', '415', 'i']

1, 2, 3, 4, 5, 7, 9