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]: ['b', 'r', 'n', '89', '379', '283', '27', 's', '361', 'm', 'l']
[A]: 1, 2, 3, 6, 7, 8, 9


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


[Q]: ['399', 'p', '381', 'g', '217']
[A]:
1, 2, 3, 7, 8, 9