#include <bits/stdc++.h>
using namespace std;
#define int long long   // <-----!!!!!!!!!!!!!!!!!!!

#define rep(i,n) for (int i=0;i<(n);i++)
#define rep2(i,a,b) for (int i=(a);i<(b);i++)
#define rrep(i,n) for (int i=(n)-1;i>=0;i--)
#define rrep2(i,a,b) for (int i=(b)-1;i>=(a);i--)
#define all(a) (a).begin(),(a).end()

typedef long long ll;
typedef pair<int, int> P;

signed main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);

    int N;
    cin >> N;
    vector<int> x(N);
    rep(i, N) cin >> x[i];

    const int inf = 1e9;
    const int mod = 1000;
    vector<int> dp(1 << N, inf);
    dp[0] = 0;
    rep(s, 1 << N) {
        int otoku = 0;
        rep(i, N) {
            if ((s >> i) & 1) {
                otoku += x[i];
            }
        }
        otoku %= mod;
        rep(i, N) {
            if ((s >> i) % 2 == 0) {
                int ns = s | (1 << i);
                dp[ns] = min(dp[ns], dp[s] + max(0LL, x[i] - otoku));
            }
        }
    }

    cout << dp[(1 << N) - 1] << endl;

}