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.

['43', '479', '317', 'w', '475', '255', '3', 'x']
1, 2, 3, 4, 5, 7, 9

['k', 'q', 'a', 'u', 'q']
-1

['o', 'r', 'j', 'c', 'i', '373', '207', 'q', '221', 'v', 'f', '303', 'o']

0, 1, 2, 3, 7