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]: ['379', 'w', 'b', '385', '429', '3', '297', '297', 't', 'z', 'i', '207', 'e', 'a']
[EX A]: 0, 2, 3, 4, 5, 7, 8, 9

[EX Q]: ['c', '31', '49', 'x', 'n', 'i', 'a', '135', '65', '401', 'b', '213', 'f', '321']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 9

[EX Q]: ['187', 't', 'n', '337', 'x', '237']
[EX A]:
1, 2, 3, 7, 8