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.

['f', 'c', '381', '149', '67', '67', '197', 'i', '289', '491', 'c', 'b']
1, 2, 3, 4, 6, 7, 8, 9

['t', '103', '349', '203', 'b', 'z', 'i', '337', 'y', '137', '77', 'p', 'k']
0, 1, 2, 3, 4, 7, 9

['u', 'm']

-1