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]: ['v', '105', 'p', 'w', '295', '239', '453']
[EX A]: 0, 1, 2, 3, 4, 5, 9

[EX Q]: ['43', '479', '317', 'w', '475', '255', '3', 'x']
[EX A]: 1, 2, 3, 4, 5, 7, 9

[EX Q]: ['q', 'j', '445', '67', '73', 'q', 'e', '259', '313', 'm', '161', 'l', '479', 'o', '1']
[EX A]:
1, 2, 3, 4, 5, 6, 7, 9