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.

['z', 'l', 's', '249', 'e', 'h', 'l']
2, 4, 9

['483', 'e', '57', 'a', '101', 'f', 'z', 'q', '115', 'x', '3', '305', '435', '45']
0, 1, 3, 4, 5, 7, 8

['q', 'v', 'x', 'u', 'r', 't', '371', '323', '37', '73']

1, 2, 3, 7