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: ['e', '307', '191', 'k', 'o', 'j', '99']

A: 0, 1, 3, 7, 9
****
Q: ['e', '313', '259', 'i', 'h']

A: 1, 2, 3, 5, 9
****
Q: ['r', 'l', '401', 'c', 'x', '1', '443', 'q', 'm', 'c', 'i', 'f', 'b', 'm', '379']

A:
0, 1, 3, 4, 7, 9
****