Untitled

#include <iostream>
#include <vector>
#include <climits>
using namespace std;
using ll = long long;
int main() {
#ifndef ONLINE_JUDGE
    FILE* file_in;
    freopen_s(&file_in, "input.txt", "r", stdin);
#endif
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int max_val = INT_MIN;
    int n; cin >> n;
    while (n--) {
        int x; cin >> x;
        if (x > max_val) {
            max_val = x;
        }
    }
    cout << max_val;
}
/*
                           _
                        _ooOoo_
                       o8888888o
                       88" . "88
                       (| -_- |)
                       O\  =  /O
                    ____/`---'\____
                  .'  \\|     |//  `.
                 /  \\|||  :  |||//  \
                /  _||||| -:- |||||_  \
                |   | \\\  -  /'| |   |
                | \_|  `\`---'//  |_/ |
                \  .-\__ `-. -'__/-.  /
              ___`. .'  /--.--\  `. .'___
           ."" '<  `.___\_<|>_/___.' _> \"".
          | | :  `- \`. ;`. _/; .'/ /  .' ; |
          \  \ `-.   \_\_`. _.'_/_/  -' _.' /
===========`-.`___`-.__\ \___  /__.-'_.'_.-'================
*/