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.

['287', 'y', 'b', '79', '39', 'l']
2, 3, 7, 8, 9

['u', '341', '151', '1', '157', '211', '189']
1, 2, 3, 4, 5, 7, 8, 9

['k', '371', 't', 'q', 'v']

1, 3, 7