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: ['167', '229', '439', '389', '483', '207']

A: 0, 1, 2, 3, 4, 6, 7, 8, 9
****
Q: ['325', '269', '199', '177', 'n', '319', '385', '227', 'o', '393', 'y', 'g', 'f', '347', '109']

A: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
****
Q: ['v', 'j', 'l', 'f', 'n', '185', 'x', '367']

A:
1, 3, 5, 6, 7, 8
****