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.

[EX Q]: ['469', 'y', 'j', 'u', '475', 'k', 'k']
[EX A]: 4, 5, 6, 7, 9

[EX Q]: ['d', '351', '357', 'q', 'b', '19', 'r', '231', '381', 'x', 'a', 'y', '263']
[EX A]: 1, 2, 3, 5, 6, 7, 8, 9

[EX Q]: ['z', '157', 'n', '283', 'o', 'u', '251', '165', 'q', 'k', '437', 's', '385', '409', 'r']
[EX A]:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9