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: ['479', '205', 'e', 'c', '57', 'm', 'i', '33', 'f', '45', 'z']

A: 0, 2, 3, 4, 5, 7, 9
****
Q: ['99', 'p', 'v', '49', 's', '279', 'v', '287', '355', 'o', '131', 'd', 'b']

A: 1, 2, 3, 4, 5, 7, 8, 9
****
Q: ['w', 'q', '171', 'y', 'y', '351', '171', '499', '41', '341', 'w', '97', 'l', 'g']

A:
1, 3, 4, 5, 7, 9
****