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.

['z', 'z', '273']
2, 3, 7

['223', '71']
1, 2, 3, 7

['195', 'x', '199', 'w', 'v', 'q', '81', 'g', 'c']

1, 5, 8, 9