#include<iostream>
using namespace std;
int main()
{
    int n, a[110];
    cin >> n;
    for (int i = 1; i <= n; i++)
    {
        cin >> a[i];
    }
    for (int i = 0; i < 110 - 1; i++)
    {
        for (int j = 0; j < 110 - i - 1; j++)
        {
            if (a[j] > a[j + 1])
            {
                int temp = a[j];
                a[j + 1] = a[j];
                a[j + 1] = temp;
            }
        }
    }
    cout << a[n] << endl;
    system("pause");
    return 0;
}