#include <iostream>
#include <fstream>
using namespace std;
ifstream f("date.in");

int main()
{
    int n,a,b,c;
    f>>n;
    f>>a>>b>>c;
    switch(n)
    {
        case 1:cout<<a;break;
        case 2:cout<<b;break;
        case 3:cout<<c;break;
    }
    return 0;
}