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:
['357', 'c', 'f', '3', 'q', 'w', 'm', 'l', '137', 'k']
answer:
1, 3, 5, 7


question:
['1', 'm']
answer:
1


question:
['w', '289', '45', '337', '165', '239', 'm', 'h']
answer:

1, 2, 3, 4, 5, 6, 7, 8, 9