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: ['l', '269', 'l', '379', '359']

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


Question: ['7', 'n', '443', '131', '189', '187', '261', '451', '449', 'o', 'i', 't', '15']

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


Question: ['191', '141', 'n', '301', '305', '389', '65']

Answer:
0, 1, 3, 4, 5, 6, 8, 9