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: ['477', '293', '301', '269', '149', 'm']

A: 0, 1, 2, 3, 4, 6, 7, 9
****
Q: ['g', 'g', 'r', 'g', 'b', 'z', '441', 'z', 'f', '35', 'x', '327', 'l', 'n']

A: 1, 2, 3, 4, 5, 7
****
Q: ['293', 'p', 'g', 'i', 'x', 'q', 'n', 'o', 'f', 'i', 'm']

A:
2, 3, 9
****