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:
['103', '431', 'z', '99', 'h', 'c', 'a', '433', '55', 'k', 'a']
answer:
0, 1, 3, 4, 5, 9


question:
['c', 'h', '151', 'g', 'd', 'd', 'k', '37']
answer:
1, 3, 5, 7


question:
['m', '243', 'n', 'o', 'x', '203', 'e', '25', '385', 'p', '375']
answer:

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