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]: ['q', 'g', 'z', '309']
[EX A]: 0, 3, 9

[EX Q]: ['f', 'c', '381', '149', '67', '67', '197', 'i', '289', '491', 'c', 'b']
[EX A]: 1, 2, 3, 4, 6, 7, 8, 9

[EX Q]: ['419', '79', 'i', '273', 'e', '341', 'h', 'j', 'y', '311', 'c', 's']
[EX A]:
1, 2, 3, 4, 7, 9