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.

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


[Q]: ['93', 'w', '357', 'z', '293', '83', 't', 'w', '11']
[A]: 1, 2, 3, 5, 7, 8, 9


[Q]: ['381', '137', 't', '131', 'q', '279', '43', '55', 'o', 'x', '115', '335', '31']
[A]:
1, 2, 3, 4, 5, 7, 8, 9