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]: ['305', '447', '125', 'c', '469', '231', 'c', '33', 'r', '69', 'p', 'b', '143']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['j', 'a', '29', 'y', 's', '107', '149', '499', '37', 'o', '289', 't']
[EX A]: 0, 1, 2, 3, 4, 7, 8, 9

[EX Q]: ['285', 'v', 'v', '325', 'y', '147', 'q', 'i', '363', '475']
[EX A]:
1, 2, 3, 4, 5, 6, 7, 8