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]: ['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]: ['j', 's', '127', 'o', 'e', '227', 'k', 'o']
[EX A]: 1, 2, 7

[EX Q]: ['i', 'o', 'g', 'i', 'e', 'j', '157']
[EX A]:
1, 5, 7