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]: ['325', '269', '199', '177', 'n', '319', '385', '227', 'o', '393', 'y', 'g', 'f', '347', '109']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

[EX Q]: ['b', '463', '39', '197', '21', 'k']
[EX A]:
1, 2, 3, 4, 6, 7, 9