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]: ['61', '255', 'u', '219', '197', 'i', '453', 'i', '267', '217', 'o', 'g']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['k', '153', '13']
[EX A]: 1, 3, 5

[EX Q]: ['373', '161', '417', 'n', 'q', 'g', '253', '403', '429', 'a']
[EX A]:
0, 1, 2, 3, 4, 5, 6, 7, 9