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6?????????????????????????
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9?????????????????????????
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1??
(1)??s?6-9g?2???
(2)?s?6g?2???
(3)?s?20?30?3??????
(4)?s?1k
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(4)s?1k?2???
(5)??s?1k?2-3??????
(6)???4?3???
(7)s1k?9g??2???
(8)??1g?2?????2?1????
(9)??5-6??3???
(10)??()??3g??...