#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>

#define FORR(i,b,e) for(int i=(b);i<(int)(e);++i)
#define FOR(i,e) FORR(i,0,e)
#define ALL(c) begin(c), end(c)
#define dump(var) cerr << #var ": " << var << "\n"
#define dumpc(con) for(auto& e: con) cerr << e << " "; cerr<<"\n"

using namespace std;

const int INF = 1e9;

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

    int N;
    cin >> N;
    vector<int> M(N);
    FOR(i, N) cin >> M[i];

    int P = 1 << N;
    vector<int> dp(P, INF);
    dp[0] = 0;
    FOR(p, P) {
        int disc = 0;
        FOR(i, N) if (p&(1<<i)) disc += M[i];
        disc %= 1000;
        FOR(i, N) {
            if ((p & (1<<i)) == 0) {
                dp[p|(1<<i)] = min(dp[p|(1<<i)],
                                   dp[p] + max(0, M[i]-disc));
            }
        }
    }
    cout << dp[P-1] << endl;
    
    return 0;
}