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:
['f', '135', 's', '269', 'x', '45', 'p', '141', 'e']
answer:
1, 2, 3, 4, 5, 6, 9


question:
['i', '485', '109', 'e', '15', '461', 'r', 'l', '223', '327']
answer:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9


question:
['133', 'z', '249', 'o', '201', '475', '389', 'p']
answer:

0, 1, 2, 3, 4, 5, 7, 8, 9