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: ['y', '101', 'g', 'c', 'z']

A: 0, 1
****
Q: ['e', 's', '153', 'e', '377', 'c', 'v', '437']

A: 1, 3, 4, 5, 7
****
Q: ['461', '339', 'i', '463', 'r']

A:
1, 3, 4, 6, 9
****