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]: ['203', 'p', 'r', 'r', 'c', 'w', 'z', 'w', 'a', '203', 'n']
[EX A]: 0, 2, 3

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

[EX Q]: ['301', 'r', '125', 'k', 'a', 'i', '485']
[EX A]:
0, 1, 2, 3, 4, 5, 8