评测难题 - Problem

#3193. 评测难题

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AI Translation — This statement was translated using AI and may contain inaccuracies. Please refer to the original statement if in doubt.

NWERC 的组织者决定改进竞赛提交代码的自动评测，因此他们现在同时使用两个系统：DOMjudge 和 Kattis。每个提交都会由两个系统分别评测，并对比评测结果以确保两个系统的一致性。然而，在配置两个系统之间的连接时出现了问题，现在评委只知道两个系统产生的所有结果，但不知道哪个结果对应哪个提交！因此，请你帮助他们计算出最多有多少个结果可能是一致的。

Kattis 和 DOMjudge

输入格式

输入包含： 一行一个整数 $n$ ($1 \le n \le 10^5$)，表示提交的数量； $n$ 行，每行一个 DOMjudge 的评测结果，顺序任意； * $n$ 行，每行一个 Kattis 的评测结果，顺序任意。

每个结果是一个长度在 5 到 15 个字符（含）之间的小写字母字符串。

输出格式

输出一行，表示两个系统可能一致的评测结果的最大数量。

样例

样例输入 1

5
correct
wronganswer
correct
correct
timelimit
wronganswer
correct
timelimit
correct
timelimit

样例输出 1

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