#include <iostream>

 #include <cstdio>

 #include <map>

 #include <string>

 using namespace std;

 map<string,int> mp;

 string s;

 int n,ans;

 int main()

 {

     while(~scanf("%d",&n))

     {

         ans=;

         mp.clear();

         for(int i=;i<=n;i++)

         {

             cin>>s;

             mp[s]++;

         }

         for(int i=;i<=n;i++)

         {

             cin>>s;

             if(mp[s])

             {

                 mp[s]--;

                 ans++;

             }

         }

         printf("%d\n",ans);

     }

 }