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: ['t', '361', 'o', 'j', '395', 'u', '211', 'a', 'i', 'i', '375', 'h', '451']

A: 1, 2, 3, 4, 5, 6, 7, 9
****
Q: ['299', '371', '313', '17', 't', 'q']

A: 1, 2, 3, 7, 9
****
Q: ['f', 'l', 'j', '479']

A:
4, 7, 9
****