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: ['s', 'y', '133', 'c', '415', 'p']

A: 1, 3, 4, 5
****
Q: ['117', '247', '49', '63']

A: 1, 2, 3, 4, 6, 7, 9
****
Q: ['307', '67', 'a', 'k']

A:
0, 3, 6, 7
****