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: ['c', 'h', '151', 'g', 'd', 'd', 'k', '37']

A: 1, 3, 5, 7
****
Q: ['291', '445', 'q', 't']

A: 1, 2, 4, 5, 9
****
Q: ['f', '55', 'v', 'j', 't', 'u', '1', '245', '113', 'w', 'y', '35', 'f', 'x', 'y']

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