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.

Ex Input:
['39', '461', '163', '379', '331', '137', 'g', 'm']

Ex Output:
1, 3, 4, 6, 7, 9


Ex Input:
['449', '427', 'g', '397', '439', 'f', 'b', 'z', 't', 'f', 's', '379', 'o']

Ex Output:
2, 3, 4, 7, 9


Ex Input:
['285', 'h', '231', 'l', 'd', 'k', '309', '345', 'k', 'p', '351', '93', 'b', 'w']

Ex Output:

0, 1, 2, 3, 4, 5, 8, 9