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]: ['h', 'o', 's', '335', '317', '279', '217', '485']
[EX A]: 1, 2, 3, 4, 5, 7, 8, 9

[EX Q]: ['p', 'p', '91']
[EX A]: 1, 9

[EX Q]: ['p', '159', '411', '359', 't', 'e', '339', 'n', 'o', '137', 'f', 't', 'a', 'v', 'w']
[EX A]:
1, 3, 4, 5, 7, 9