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]: ['449', '427', 'g', '397', '439', 'f', 'b', 'z', 't', 'f', 's', '379', 'o']
[EX A]: 2, 3, 4, 7, 9

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

[EX Q]: ['z', 'l', '69', 'g', '369', 'x']
[EX A]:
3, 6, 9