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', '31', '49', 'x', 'n', 'i', 'a', '135', '65', '401', 'b', '213', 'f', '321']
0, 1, 2, 3, 4, 5, 6, 9

['r', '273', 'h', '421', 'k', 'r', 'k', 't', 'x', 's', 'j']
1, 2, 3, 4, 7

['255', '461', '367', 'a', 'l', 's', 't', 'u', '77']

1, 2, 3, 4, 5, 6, 7