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:
['s', '291', '257', 'w', '497', '309']
answer:
0, 1, 2, 3, 4, 5, 7, 9


question:
['f', '253', '211', '85', 'm', 'y', 'l', 'r', 't', 'm', '193', 'p', '415', 'h', 'h']
answer:
1, 2, 3, 4, 5, 8, 9


question:
['43', 'n', 's', '453', 'c', '205']
answer:

0, 2, 3, 4, 5