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.

['u', 'z', 'p', '99', 'b']
9

['203', 'p', 'r', 'r', 'c', 'w', 'z', 'w', 'a', '203', 'n']
0, 2, 3

['r', 'e', 'o', '167', '23', '275', '479', '429', 'v', '9']

1, 2, 3, 4, 5, 6, 7, 9