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.

['411', 'n']
1, 4

['t', '211', 'h', '99']
1, 2, 9

['49', 'd', '335', '133', 'y', '187', 'd', 'd', 'o']

1, 3, 4, 5, 7, 8, 9

