#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=int(a);i<int(b);++i)
using namespace std;
typedef long long ll;
int INF = (1LL << 30) - 1;
int MOD = 1e9+7;
main(){
    int N;
    cin >> N;
    vector<int> M(N),modsum(1 << N);
    int dp[1 << N];

    rep(i,0,N)cin >> M[i];
    rep(i,0,1 << N){
        dp[i] = INF;
        rep(j,0,N){
            if(i & (1 << j))modsum[i] += M[j];
        }
        modsum[i] %= 1000;
    }

    dp[0] = 0;
    rep(i,0,1 << N){
        //i:=買ったものの集合 dp[i]:=iだけ買ったときの最小値
        if(dp[i] == INF)continue;
        rep(j,0,N){
            int next = i | (1 << j);
            int value = max(M[j] - modsum[i], 0);
            dp[next] = min(dp[next], dp[i] + value);
        }
    }
    cout << dp[(1 << N) - 1] << endl;
}