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: ['7', 'u', 's', '75', 't', 'o']

A: 5, 7
****
Q: ['387', '7', '93', '105', '181']

A: 0, 1, 3, 5, 7, 8, 9
****
Q: ['w', '151', 'r']

A:
1, 5
****