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: ['149', '129', 'k']

A: 1, 2, 4, 9
****
Q: ['449', '427', 'g', '397', '439', 'f', 'b', 'z', 't', 'f', 's', '379', 'o']

A: 2, 3, 4, 7, 9
****
Q: ['j', 'z', '409', '45', '479', '247', '433', '333', '469', '447', '321', '277', '435']

A:
0, 1, 2, 3, 4, 5, 6, 7, 9
****