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: ['t', '211', 'h', '99']

Answer: 1, 2, 9


Question: ['j', 'a', '29', 'y', 's', '107', '149', '499', '37', 'o', '289', 't']

Answer: 0, 1, 2, 3, 4, 7, 8, 9


Question: ['c', 'q', '1', '153', '251', '323']

Answer:
1, 2, 3, 5