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: ['137', '383', 'o', 'z', '199', '329', 'l', 'j', 'p', '469', 'f', 'm', '371', '485']

Answer: 1, 2, 3, 4, 5, 6, 7, 8, 9


Question: ['221', '191', 'w', 'l', 'h', 'a']

Answer: 1, 2, 9


Question: ['g', '3', '219', 'f', 'x', '393', '325', 'x', 'j', '461', 'a', '467', '251', 'k']

Answer:
1, 2, 3, 4, 5, 6, 7, 9