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]: ['243', 't', '249', 'q', '459', '469', '301', 'j', '215', '21']
[A]: 0, 1, 2, 3, 4, 5, 6, 9


[Q]: ['415', '365', '373', 't', 'n']
[A]: 1, 3, 4, 5, 6, 7


[Q]: ['q', '235', 'o', '347', 'g', 'n']
[A]:
2, 3, 4, 5, 7