#include <bits/stdc++.h>
using namespace std;
int main()
{
int n,x,y;
int a[1000];
cin>>n;
x=n*2+1;
for(int i=0;i<x;i++){
cin>>a[i];
}
sort(a,a+x);
y=x/2;
cout<<a[y]<<endl;
return 0;
}
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