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: ['z', 'z', '273']

A: 2, 3, 7
****
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: ['435', '221', 'm', '493', '109', 'l', '475', 't', 'c', '229']

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