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.

Ex Input:
['391', 'y', '447', '345', '157', '265', 'x', '261', 'm', 'f', 'x', 'x', '379', 'r', 'g']

Ex Output:
1, 2, 3, 4, 5, 6, 7, 9


Ex Input:
['y', 'v', '311', 'f', '273']

Ex Output:
1, 2, 3, 7


Ex Input:
['a', '171', 'h', '269', '311', '239', 'o', 'o']

Ex Output:

1, 2, 3, 6, 7, 9