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]: ['u', '207', 'q', '371', 's', '51', '217', 'q', '255', '9', '109', 'l', 'b', 'w']
[EX A]: 0, 1, 2, 3, 5, 7, 9

[EX Q]: ['455', '447', 'x', '479', 'b', '267', '339', '29', '267']
[EX A]: 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['299', 't', '465', '343']
[EX A]:
2, 3, 4, 5, 6, 9