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.

[Q]: ['i', '325', '117', 'k', 'y', 'x', '49', '349', '477', 'u', '435']
[A]: 1, 2, 3, 4, 5, 7, 9


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


[Q]: ['y', '359', '303', 'e', 'u', '237', '355', 'f', 'd', 'i', '43', 'z', 'k', '345', 'u']
[A]:
0, 2, 3, 4, 5, 7, 9