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', 'm', 'h', 'c', '69', '233', 'j', 'g', 'r', 'x', '59', 'p', '469']

A: 2, 3, 4, 5, 6, 9
****
Q: ['151', 'j', 'o', 's', 'q', 'r', '325']

A: 1, 2, 3, 5
****
Q: ['w', '437', 'r', 'f', '243', 's', 'f', '25', 'y']

A:
2, 3, 4, 5, 7
****