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:
['305', '447', '125', 'c', '469', '231', 'c', '33', 'r', '69', 'p', 'b', '143']

Ex Output:
0, 1, 2, 3, 4, 5, 6, 7, 9


Ex Input:
['i', 'f', 'g', '267', '113', '93', 'r', '401', 'g', 'e']

Ex Output:
0, 1, 2, 3, 4, 6, 7, 9


Ex Input:
['131', '217']

Ex Output:

1, 2, 3, 7