import java.util.*;
import java.io.*;

public class Main {
    static int ans = 0;
    static int n;
    static int[] monsters;
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        n = sc.nextInt();
        monsters = new int[n];
        for (int i = 0; i < n; i++) {
            monsters[i] = sc.nextInt();
        }
        check(0, 100, 100, new boolean[n]);
        System.out.println(ans);
    }
    
    static void check(int idx, int current, int max, boolean[] used) {
        if (idx >= n) {
            ans = Math.max(ans, current);
            return;
        }
        for (int i = 0; i < n; i++) {
            if (used[i]) {
                continue;
            }
            used[i] = true;
            if (monsters[i] < 0) {
                if (current + monsters[i] > 0) {
                    check(idx + 1, current + monsters[i], max + 100, used);
                }
            } else {
                check(idx + 1, Math.min(current + monsters[i], max), max, used);
            }
            used[i] = false;
        }
    }

}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public String nextLine() throws Exception {
        return br.readLine();
    }
    
    public String next() throws Exception {
        if (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
}