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]: ['45', '95', 'y', '363', '265', '307', '309', '423']
[EX A]: 0, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['381', '357', 'w', 'r', '115', 'z', '389', 'p', 'p', '101', '229']
[EX A]: 0, 1, 2, 3, 5, 7, 8, 9

[EX Q]: ['g', '159', '225', '21', 'g']
[EX A]:
1, 2, 5, 9