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.

['l', 'n', '477', '227', '71', 'p', 'q', '277', '135', 'i']
1, 2, 3, 4, 5, 7

['b', 'm', '471']
1, 4, 7

['309', 'u', 'a', 'q', 'l', 'r', '463', '349', 'c', '427', '99', '65', '147', '463']

0, 1, 2, 3, 4, 5, 6, 7, 9