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]: ['j', 't']
[A]: -1


[Q]: ['497', '247', 'v', '327', '237', '257', '475', 's', '335', 'k']
[A]: 2, 3, 4, 5, 7, 9


[Q]: ['439', 'w', 'g', '497', 'z', '233', 'm', 'r', '121', '237', 'h', '57', 'g', 'v']
[A]:
1, 2, 3, 4, 5, 7, 9