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

['7', 'x', '365', 't', 'l', '253', '219', '363', '165', 'a', 'g', '347', 'y', 'w', '63']
1, 2, 3, 4, 5, 6, 7, 9

['311', 'v', 'x', 'y', '401', 'i']

0, 1, 3, 4

