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.

['377', 'z', '421', '137', 't', 'v', 's', 'l']
1, 2, 3, 4, 7

['287', 'y', 'b', '79', '39', 'l']
2, 3, 7, 8, 9

['g', 'q']

-1