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.

['305', '447', '125', 'c', '469', '231', 'c', '33', 'r', '69', 'p', 'b', '143']
0, 1, 2, 3, 4, 5, 6, 7, 9

['k', 'b', 'k', 'l', '441', 'b', '115', 'd', 'b', 'r', '115', 'k', 'a']
1, 4, 5

['h', '441', 'n', '129', 'p', 'i', 'c', 'w', 'd']

1, 2, 4, 9