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.

['p', 'r', 'e', 'b', '149', '361', 'i']
1, 3, 4, 6, 9

['445', '449']
4, 5, 9

['227', '433', '247', '57', '85', '51', 'w', '481', '125', 'i', 'e']

1, 2, 3, 4, 5, 7, 8