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', '103', '349', '203', 'b', 'z', 'i', '337', 'y', '137', '77', 'p', 'k']

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


Ex Input:
['l', 'g', 'o', 'x', '27', 'r', '123', '395', 'p', '27', '213', '455', 'y', '97']

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


Ex Input:
['j', 'w', 'b', 'p', '133', '237']

Ex Output:

1, 2, 3, 7