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]: ['13', 'p', '427', 's', 'x', 'x', '43', 'h', 'j', 'z', '21']
[EX A]: 1, 2, 3, 4, 7

[EX Q]: ['p', 'n', 'c', '113', '105', '423', 'k', 'a', '211', 'k', '91', '389']
[EX A]: 0, 1, 2, 3, 4, 5, 8, 9

[EX Q]: ['u', '421', '211', '413', '69', 'u', 'x', 'j']
[EX A]:
1, 2, 3, 4, 6, 9