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.
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Question: ['c', 'm', 'h', 'c', '69', '233', 'j', 'g', 'r', 'x', '59', 'p', '469']

Answer: 2, 3, 4, 5, 6, 9


Question: ['j', '131', 'e', 'c', '149', '325', 'h', 'l', 'i', 'q', '151']

Answer: 1, 2, 3, 4, 5, 9


Question: ['s', 'b', '403', '359', 'r', '115', 'g', '483', '309', '447', 'q']

Answer:
0, 1, 3, 4, 5, 7, 8, 9