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:
['p', 't', '211', 'r', '439', 'h', 'g', 'c', '299', '371']

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


Ex Input:
['n', 'm', 'u', '267']

Ex Output:
2, 6, 7


Ex Input:
['d', 'c', '217', '499', 'h']

Ex Output:

1, 2, 4, 7, 9