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]: ['y', 'v', '311', 'f', '273']
[A]: 1, 2, 3, 7


[Q]: ['p', '305', 't', 'x', '497', '209', '151', '89', '53', '189', 'n', '129', 'c', '227', 'p']
[A]: 0, 1, 2, 3, 4, 5, 7, 8, 9


[Q]: ['f', 'x', '201', 'b', '303']
[A]:
0, 1, 2, 3