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: ['339', '473', '485']

A: 3, 4, 5, 7, 8, 9
****
Q: ['s', '45']

A: 4, 5
****
Q: ['t', '331', 'o', '237', '359', '261', 's', 'd', 'h', 'p', '119', 'c', 'd', '409', '369']

A:
0, 1, 2, 3, 4, 5, 6, 7, 9
****