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: ['r', '321', '355', 'w', 'm', 'v', 'a', 'u', '455', 'n', '169']

A: 1, 2, 3, 4, 5, 6, 9
****
Q: ['389', 'v', '17', 'n', 'm']

A: 1, 3, 7, 8, 9
****
Q: ['k', '59', '331', 'l']

A:
1, 3, 5, 9
****