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: ['431', '245', '23', 'c', '185', 'k', '155', '163', 'e', '35', 'r', '175', '163']

A: 1, 2, 3, 4, 5, 6, 7, 8
****
Q: ['t', '103', '349', '203', 'b', 'z', 'i', '337', 'y', '137', '77', 'p', 'k']

A: 0, 1, 2, 3, 4, 7, 9
****
Q: ['321', 'k', '195', 'z', 'p', 't', 'n', 'y', '197', '337', '499', '123', '297']

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