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.

['c', 'h', '151', 'g', 'd', 'd', 'k', '37']
1, 3, 5, 7

['385', 'k', 'a', 't', 'o', 'b', 'g', 'u', '319', 'e', '315', '365']
1, 3, 5, 6, 8, 9

['435', '251', 'x', 'd', '215', '165', '15', '451']

1, 2, 3, 4, 5, 6