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.

['v', 'w', '125', 'r', 'a', '309', '259', 'c', 'a', 'c', 'w', '273', '279']
0, 1, 2, 3, 5, 7, 9

['493', '441', '3', 'p', '23', 'x', 'n', '417', '299', 'v', 'l', '415']
1, 2, 3, 4, 5, 7, 9

['97', 'q', 'r', '387', 'x', '17', 'h', '285', '279']

1, 2, 3, 5, 7, 8, 9