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]: ['227', '161', '389', 'g', 'g', 'i', 'm', '199', '487', '65', '341', '377', 'x', 'r']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 8, 9

[EX Q]: ['f', '349', 'i', '293', 'l']
[EX A]:
2, 3, 4, 9