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: ['363', 'u', '179', 'e', '279', 'a', '151', '173', 'e', '61', '213']

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


Question: ['q', 'g', 'z', '309']

Answer: 0, 3, 9


Question: ['11', 'p', 'g', '231', 'k', 'v', 'v', 'm', '207', '371', '273', '493', 'x', '469']

Answer:
0, 1, 2, 3, 4, 6, 7, 9