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: ['93', 'h', 'd', 'z', '395', 'r', 'j', 'f', '323', '215', 'n', 's', '497']

A: 1, 2, 3, 4, 5, 7, 9
****
Q: ['349', '327', 'c', 'a', '493', 'a', 'm', '337', '397', '213', '203', '139']

A: 0, 1, 2, 3, 4, 7, 9
****
Q: ['c', 'g']

A:
-1
****