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: ['279', 'y', '391', '33', '281', '113', 'd', 'v']

A: 1, 2, 3, 7, 8, 9
****
Q: ['v', 'q', '139', '79', '149', '469', 'g', '239', '221', 'v', '77']

A: 1, 2, 3, 4, 6, 7, 9
****
Q: ['69', '17', 'n', '95', '387', 'g', '43', '357', 'k']

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