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]: ['243', 't', '249', 'q', '459', '469', '301', 'j', '215', '21']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 9

[EX Q]: ['493', '241', '239', 'g', 'q', '319', '49', '245']
[EX A]: 1, 2, 3, 4, 5, 9

[EX Q]: ['p', '129', 'l', 'g', 'm', 'p', 'm', '255', '203', '353', '265', '105', '253']
[EX A]:
0, 1, 2, 3, 5, 6, 9