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:
['39', '461', '163', '379', '331', '137', 'g', 'm']

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


Ex Input:
['411', 'n']

Ex Output:
1, 4


Ex Input:
['61', 'p', '49', '267', '327', 'j', 'i', 'p', '471', '321']

Ex Output:

1, 2, 3, 4, 6, 7, 9