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]: ['p', 'p', '91']
[A]: 1, 9


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


[Q]: ['a', '377', '87', 'f', 'm', '127', 't']
[A]:
1, 2, 3, 7, 8