/*
Jackson Simoneau
SI@UCF 2026 - Intro to Competitive Programming
Contest 2

Solution to Penultimate Ice Cream: https://open.kattis.com/problems/penultimateicecream
*/

#include <bits/stdc++.h>
using namespace std;

int main() {
    int n; cin >> n;
    vector<int> a(n);
    for(int i = 0; i < n; i++) cin >> a[i];
    sort(a.rbegin(), a.rend());
    cout << a[1] << endl;
}