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: ['y', '439', 't', '29', '425', '289']

A: 2, 3, 4, 5, 8, 9
****
Q: ['q', 'g', 'z', '309']

A: 0, 3, 9
****
Q: ['357', '359', 'e', '219', '475', 'x', 'a', 'h', 'q', 'n', 'p', '365', '453', 'x', 'd']

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