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: ['e', '307', '191', 'k', 'o', 'j', '99']

A: 0, 1, 3, 7, 9
****
Q: ['187', '461', 'b']

A: 1, 4, 6, 7, 8
****
Q: ['237', 'c', '339', '465', 'p', 'f', '377', '113', '479', 'w', '61', '113']

A:
1, 2, 3, 4, 5, 6, 7, 9
****