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', '343', '167', 'a']
1, 3, 4, 6, 7

['u', 'm', 's', '101', '427', 'h', 'i', '463', 'j', '77', '465', 'r']
0, 1, 2, 3, 4, 5, 6, 7

['c', 'd', '93', '41', 's', 'e', '431']

1, 3, 4, 9