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: ['p', 'n', 'c', '113', '105', '423', 'k', 'a', '211', 'k', '91', '389']

A: 0, 1, 2, 3, 4, 5, 8, 9
****
Q: ['151', 'j', 'o', 's', 'q', 'r', '325']

A: 1, 2, 3, 5
****
Q: ['l', '219', 'l', '231', 'g', 'x', 'y', '477', '3', 'w', 'c', 'g', '217']

A:
1, 2, 3, 4, 7, 9
****