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]: ['487', '355', 'm', 's', '367', 'n', '203', 'x', 't', 'v', 'd', '251']
[A]: 0, 1, 2, 3, 4, 5, 6, 7, 8


[Q]: ['o', '235', '479', 'e', '199', 'c', '25', '59', 'g', '415', '201', '129', 'a', 'i', 'c']
[A]: 0, 1, 2, 3, 4, 5, 7, 9


[Q]: ['p', '403', 'a', 'j', '51', 'b', '91', 'e', 'v', 'j', '439', 'i', '41']
[A]:
0, 1, 3, 4, 5, 9