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]: ['87', '353', '329', '163', 'i', 'd', '287']
[EX A]: 1, 2, 3, 5, 6, 7, 8, 9

[EX Q]: ['87', '139', 'y', '129', '255', '227', '103', 'j']
[EX A]: 0, 1, 2, 3, 5, 7, 8, 9

[EX Q]: ['u', 'n', 'x', '441']
[EX A]:
1, 4