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.

['187', '461', 'b']
1, 4, 6, 7, 8

['269', 'a', 'x', '395', '477', 'e', 'd', 'o', '129', 'j', '93', '237', '417', 'f']
1, 2, 3, 4, 5, 6, 7, 9

['v', '223', '435', 'q', 'a', 'w', 'd', 'p', 'n', '121', '69']

1, 2, 3, 4, 5, 6, 9