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]: ['25', 'b', '455', 'n', '305', '271']
[A]: 0, 1, 2, 3, 4, 5, 7


[Q]: ['293', '473', '79', 'j', '455', '285', 'k', 'd', '379', '249', '73', '229']
[A]: 2, 3, 4, 5, 7, 8, 9


[Q]: ['323', '59', '67', '305', '477', 'd', 'n', 'x', '69', 'g', '341', '413']
[A]:
0, 1, 2, 3, 4, 5, 6, 7, 9