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: ['103', '431', 'z', '99', 'h', 'c', 'a', '433', '55', 'k', 'a']

A: 0, 1, 3, 4, 5, 9
****
Q: ['p', 'r', 'e', 'b', '149', '361', 'i']

A: 1, 3, 4, 6, 9
****
Q: ['n', 't', '195', '221', '85', 'y', 'i', '401', 'x', '137', '435', '47', 'b', 'u']

A:
0, 1, 2, 3, 4, 5, 7, 8, 9
****