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]: ['n', '319', 's', '325', '177', '161', '43', 'g', 'o', '59', 'w', 'y', 'g', 'm']
[A]: 1, 2, 3, 4, 5, 6, 7, 9


[Q]: ['b', 'm', '471']
[A]: 1, 4, 7


[Q]: ['399', '233', 'l', 'z', '301', 'g', '469', '449', '377', 'x', '39', '335', '109', 'f', 'e']
[A]:
0, 1, 2, 3, 4, 5, 6, 7, 9