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:
['93', 'w', '357', 'z', '293', '83', 't', 'w', '11']
answer:
1, 2, 3, 5, 7, 8, 9


question:
['407', 'a', 'l', '307', 'a']
answer:
0, 3, 4, 7


question:
['v', '481', 'v', '289', '267', 'f', '7']
answer:

1, 2, 4, 6, 7, 8, 9