instruction:
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.
question:
['z', '483', '285', 'e', 'm', '95', '471', '65', 'v', '201', '19', '259', '459', '253', '181']
answer:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9


question:
['p', 'r', 'e', 'b', '149', '361', 'i']
answer:
1, 3, 4, 6, 9


question:
['x', '389', '173', '127']
answer:

1, 2, 3, 7, 8, 9