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', '355', '417', 'e', '359', 'c', 'w', 'q', '237', '93', '431', '59', 'l', '121']
answer:
0, 1, 2, 3, 4, 5, 7, 9


question:
['f', '367', 'w', '227', '201', 'n', '213', '11']
answer:
0, 1, 2, 3, 6, 7


question:
['r', '163', 'v', 'k', 'c', 'c', 'e', '387', '157', '13', 'n', '247']
answer:

1, 2, 3, 4, 5, 6, 7, 8