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5555...我被欺骗了....Input:里面说到 "Each telephone number consists of a string composed of decimal digits, uppercase letters (excluding Q and Z) and hyphens. Exactly seven of the characters in the string will be digits or letters. "明明是uppercase letters,但我不认小写的就是wa。刚刚试一下小写也map过去就ac了... 郁闷了整整1天啊...5555 Followed by:
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