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:
['13', 'p', '427', 's', 'x', 'x', '43', 'h', 'j', 'z', '21']

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


Ex Input:
['131', '483', 'k', '387', '451', 'j']

Ex Output:

1, 3, 4, 5, 7, 8