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: ['61', '255', 'u', '219', '197', 'i', '453', 'i', '267', '217', 'o', 'g']

A: 1, 2, 3, 4, 5, 6, 7, 9
****
Q: ['t', '175', '163', 'k', '279', '385', 'y', '71', 'g']

A: 1, 2, 3, 5, 6, 7, 8, 9
****
Q: ['341', '261', '293', '455', '493', 'y', 'e', '353', '387', '491', '197']

A:
1, 2, 3, 4, 5, 6, 7, 8, 9
****