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]: ['r', 'f', 'l', 'a', 'c', '489', 'e', 'p', 'm', '175', 'l']
[A]: 1, 4, 5, 7, 8, 9


[Q]: ['u', 'm', 's', '101', '427', 'h', 'i', '463', 'j', '77', '465', 'r']
[A]: 0, 1, 2, 3, 4, 5, 6, 7


[Q]: ['j', '345', 'y', '171', 'u', '349']
[A]:
1, 3, 4, 5, 7, 9