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.

Q: ['87', '139', 'y', '129', '255', '227', '103', 'j']

A: 0, 1, 2, 3, 5, 7, 8, 9
****
Q: ['k', 'a', '437', '461', 'b', '341', '175']

A: 1, 3, 4, 5, 6, 7
****
Q: ['q', '289', '135', '135', '177', 'x', '117', '251', '89', 'w']

A:
1, 2, 3, 5, 7, 8, 9
****