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: ['t', '103', '349', '203', 'b', 'z', 'i', '337', 'y', '137', '77', 'p', 'k']

A: 0, 1, 2, 3, 4, 7, 9
****
Q: ['221', '191', 'w', 'l', 'h', 'a']

A: 1, 2, 9
****
Q: ['407', '329', '431', 'i', '17', 'r', 'c', '61', '345', 'q', 'x', '91']

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