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: ['403', 'j', 'x', '187', '311', 'g', 'z', 'p', '287', 'w', 'k', 'm']

A: 0, 1, 2, 3, 4, 7, 8
****
Q: ['291', '445', 'q', 't']

A: 1, 2, 4, 5, 9
****
Q: ['v', 'y', 'd', 'u', 'x', '175', '287', 'c']

A:
1, 2, 5, 7, 8
****