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: ['405', 'x', '163', 'z', 'z', '261', 'o']

A: 0, 1, 2, 3, 4, 5, 6
****
Q: ['425', 'x', 'u', 'f', 'v', '481', 'm', 'y', '159', '1']

A: 1, 2, 4, 5, 8, 9
****
Q: ['469', '73', '375', '257', '285', 'g', '455', 'k', 'c', '291', 'n', '75']

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