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', 'u', '199', 'v', '249']
[EX A]: 1, 2, 4, 9

[EX Q]: ['u', 'c', 'f', 'z', '51', '301', 'q', '275']
[EX A]: 0, 1, 2, 3, 5, 7

[EX Q]: ['163', 'f', 's', '221', 'g', 'j', '337', 's', '447', '93']
[EX A]:
1, 2, 3, 4, 6, 7, 9