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: ['461', 'u', 't']

A: 1, 4, 6
****
Q: ['87', '139', 'y', '129', '255', '227', '103', 'j']

A: 0, 1, 2, 3, 5, 7, 8, 9
****
Q: ['b', 'y', 'd', 'd', '113', '381']

A:
1, 3, 8
****