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]: ['117', '247', '49', '63']
[A]: 1, 2, 3, 4, 6, 7, 9


[Q]: ['y', 'o', '287', 'm', 's', '61']
[A]: 1, 2, 6, 7, 8


[Q]: ['d', 'k', '49', 'o', 'u', 'l', '487', 'm', 'j', 'o', 'h', '499', '289', '171', '59']
[A]:
1, 2, 4, 5, 7, 8, 9