/**
 *   @FileName	a.cpp
 *   @Author	kanpurin
 *   @Created	2020.05.22 16:45:43
**/

#include "bits/stdc++.h" 
using namespace std; 
typedef long long ll;

int bitpopcount(ll n) {
    int res = 0;
    while (n) {
        if (n & 1) res++;
        n >>= 1;
    }
    return res;
}
int main() {
    int n;cin >> n;
    vector<int> a(n);
    vector<int> dp(1<<n,0);
    int s = 0;
    for (int i = 0; i < n; i++) {
        cin >> a[i];
        if (a[i] < 0) {
            s |= (1 << i);
        }
    }
    dp[0] = 100;
    for (int i = 0; i < (1<<n); i++) {
        if (dp[i] == 0) continue; 
        int cnt = 0;
        for (int j = 0; j < n; j++) {
            if (!(i & (1 << j))) {
                if (a[j] < 0) {
                    if (dp[i] + a[j] > 0) {
                        dp[i | (1 << j)] = max(dp[i | (1 << j)],dp[i] + a[j]);
                    } 
                }
                else {
                    dp[i | (1 << j)] = max(dp[i | (1 << j)],min(dp[i] + a[j],bitpopcount(i&s) * 100 + 100));
                }
            }
        }
    }
    cout << dp[(1<<n)-1] << endl;
    return 0;
}