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.

['285', 'w', '37', '471', 'y', '435', '27', '415', 'f', 's', '27', 'b']
1, 2, 3, 4, 5, 7, 8

['175', 'c', 'c']
1, 5, 7

['k', '143', 'k', '187', '181', '31', 'c', '9', '117', '445', '117', '179']

1, 3, 4, 5, 7, 8, 9