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.

Q: ['u', '465', '129', 'o']

A: 1, 2, 4, 5, 6, 9
****
Q: ['61', '417', '437', '489', '383', 'n', '11', 'o', 'a', 'v', '37', 'q', '317']

A: 1, 3, 4, 6, 7, 8, 9
****
Q: ['b', 'f', 'y', '457', '355', '87', '245', 'u', 's']

A:
2, 3, 4, 5, 7, 8
****