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: ['447', '77', '337', 'i', '257', '477', 'l', 'm', '357', 'k', '293', '425', 's']

A: 2, 3, 4, 5, 7, 9
****
Q: ['93', 'w', '357', 'z', '293', '83', 't', 'w', '11']

A: 1, 2, 3, 5, 7, 8, 9
****
Q: ['35', 'b', '171', '247', 'f', 'h', '379', '125', '323', 'j', 'p']

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