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: ['g', '169', '93', 'z', 'h', '493', 'r']

A: 1, 3, 4, 6, 9
****
Q: ['293', '473', '79', 'j', '455', '285', 'k', 'd', '379', '249', '73', '229']

A: 2, 3, 4, 5, 7, 8, 9
****
Q: ['m', 'd', 'u', 'p', '15', 'l', '411']

A:
1, 4, 5
****