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:
['23', 'p', '409', '305', 'z', 'q', '295', '391']
answer:
0, 1, 2, 3, 4, 5, 9


question:
['119', '329', 'w']
answer:
1, 2, 3, 9


question:
['w', '439', 'b', 'w', 'w', 'z', '303', 'g', '165', '311']
answer:

0, 1, 3, 4, 5, 6, 9