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.

[EX Q]: ['349', '327', 'c', 'a', '493', 'a', 'm', '337', '397', '213', '203', '139']
[EX A]: 0, 1, 2, 3, 4, 7, 9

[EX Q]: ['c', '471', 'l', 'z', '23', 'c', '43', 'o', '175', 'w', 'c', 'p', '431']
[EX A]: 1, 2, 3, 4, 5, 7

[EX Q]: ['207', 'e', '95', '155', 'p']
[EX A]:
0, 1, 2, 5, 7, 9

