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行末的空格不要紧的，不信你拿ac的代码改改看

Posted by hawk at 2005-08-20 20:19:26 on Problem 1505
In Reply To:最后一个数后面仍然需要空格，若省掉反倒会错。我wa N次了。 Posted by:zxqi_009 at 2005-08-20 20:14:08 
多输出几个空格，或者不输出空格
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