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', 'm', 'h', 'c', '69', '233', 'j', 'g', 'r', 'x', '59', 'p', '469']
2, 3, 4, 5, 6, 9

['497', '247', 'v', '327', '237', '257', '475', 's', '335', 'k']
2, 3, 4, 5, 7, 9

['t', 'k', 'l', '69', '61', '295', 'c', '337', '319', 'v', 'l']

1, 2, 3, 5, 6, 7, 9