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:
['t', '197', '129', 'u', 'l', 'y', '485', '57', '147', 'p', '137', 'v', '221']

Ex Output:
1, 2, 3, 4, 5, 7, 8, 9


Ex Input:
['k', 'a', '437', '461', 'b', '341', '175']

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


Ex Input:
['o', 'f', 'u']

Ex Output:

-1