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

A: 1, 3, 4, 6, 7, 9
****
Q: ['477', '293', '301', '269', '149', 'm']

A: 0, 1, 2, 3, 4, 6, 7, 9
****
Q: ['u', '485', 'b', 'o', 'j', '475', '473', '405', '381', '143']

A:
0, 1, 3, 4, 5, 7, 8
****