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]: ['217', 'c', 'h', 'e', 't', '331', '69']
[A]: 1, 2, 3, 6, 7, 9


[Q]: ['h', 'i', 'e', '319', 'g', '187', '395', 'f', '327', 'y']
[A]: 1, 2, 3, 5, 7, 8, 9


[Q]: ['p', 'b', '71', '139', '21', 'p', '445', 'b']
[A]:
1, 2, 3, 4, 5, 7, 9