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.

['305', '447', '125', 'c', '469', '231', 'c', '33', 'r', '69', 'p', 'b', '143']
0, 1, 2, 3, 4, 5, 6, 7, 9

['h', 't', 'h', 'i', 'c', '441', '117', '463', 'r']
1, 3, 4, 6, 7

['261', '3']

1, 2, 3, 6