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:
['353', '195', '297', '175', 'u', 'p', 'r', 'l']

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


Ex Input:
['25', 'b', '455', 'n', '305', '271']

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


Ex Input:
['r', '321', 'd', 'v', 'z', '481', 'o']

Ex Output:

1, 2, 3, 4, 8