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]: ['p', '305', 't', 'x', '497', '209', '151', '89', '53', '189', 'n', '129', 'c', '227', 'p']
[EX A]: 0, 1, 2, 3, 4, 5, 7, 8, 9

[EX Q]: ['j', 's', '127', 'o', 'e', '227', 'k', 'o']
[EX A]: 1, 2, 7

[EX Q]: ['15', 'h', '77', '453', 'o', '365', 'y']
[EX A]:
1, 3, 4, 5, 6, 7