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]: ['d', '71', '65', '177', 'k']
[EX A]: 1, 5, 6, 7

[EX Q]: ['487', '355', 'm', 's', '367', 'n', '203', 'x', 't', 'v', 'd', '251']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 7, 8

[EX Q]: ['h', '343', '409', '457']
[EX A]:
0, 3, 4, 5, 7, 9