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: ['425', 'a', '351', 'v']

A: 1, 2, 3, 4, 5
****
Q: ['r', '171', 'p', '299', 'u', 'n', '421', '331', 'h', '21', 'h', 'x', '435', '327', '373']

A: 1, 2, 3, 4, 5, 7, 9
****
Q: ['237', '309', 'l', '407', 'a', '85', '347', '165']

A:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
****