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: ['425', 'a', '351', 'v']

A: 1, 2, 3, 4, 5
****
Q: ['p', '305', 't', 'x', '497', '209', '151', '89', '53', '189', 'n', '129', 'c', '227', 'p']

A: 0, 1, 2, 3, 4, 5, 7, 8, 9
****
Q: ['n', 'f', '175', 'i', 's', 'x', 'k', '475', 'q', '21', '313', '233', '57', '197', 'n']

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