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:
['g', '411', '307', 'i', '483', 'z', '29', 't', 'f', 'z']
answer:
0, 1, 2, 3, 4, 7, 8, 9


question:
['x', '91', 'q', '417', '385', '455', '393', 'm', 's', 'c', '91', '71', 'n']
answer:
1, 3, 4, 5, 7, 8, 9


question:
['299', 'd', '85', '149', 't', 'm', '487', 'f', 'y', '387', 'o', '301', '241', '237']
answer:

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


