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', '185', '73', 'h', '455', '333', 'l', '403', 'k', 'e', '77', '429', '423', '453']

A: 0, 1, 2, 3, 4, 5, 7, 8, 9
****
Q: ['y', 'v', '311', 'f', '273']

A: 1, 2, 3, 7
****
Q: ['437', '303', 'z', 'q', '319', 'p', 'o', '239', 'k']

A:
0, 1, 2, 3, 4, 7, 9
****