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]: ['39', '461', '163', '379', '331', '137', 'g', 'm']
[EX A]: 1, 3, 4, 6, 7, 9

[EX Q]: ['269', 'a', 'x', '395', '477', 'e', 'd', 'o', '129', 'j', '93', '237', '417', 'f']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['217', '175', '211', '279', '299', '303', 'p']
[EX A]:
0, 1, 2, 3, 5, 7, 9