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.

[Q]: ['i', 'f', 'g', '267', '113', '93', 'r', '401', 'g', 'e']
[A]: 0, 1, 2, 3, 4, 6, 7, 9


[Q]: ['s', '291', '257', 'w', '497', '309']
[A]: 0, 1, 2, 3, 4, 5, 7, 9


[Q]: ['t', 'l', 'v', '47', 's', 'g', '361', 'f']
[A]:
1, 3, 4, 6, 7


