#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <cctype>
#include <cmath>
#include <iostream>
#include <queue>
#include <list>
#include <stack>
#include <map>
#include <numeric>
#include <set>
#include <sstream>
#include <string>
#include <vector>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;

#define INF 999999999
int dp[(1<<15)][15];

int main(){
  ios::sync_with_stdio(false);
  int N;
  cin >> N;
  vector<int> M;
  rep(i,N){
    int m;
    cin >> m;
    M.push_back(m);
  }
  rep(S,(1<<N)) rep(i,N) dp[S][i] = INF;
  rep(i,N) dp[0][i] = 0;
  
  rep(S,(1<<N)){
    int sum = 0;
    rep(i,N) if((S>>i)&1) sum += M[i];

    rep(prev,N) if(dp[S][prev] != INF){
      rep(nxt,N) if(!((S>>nxt)&1)){
        int b = max(0, M[nxt] - (sum%1000));
        dp[S|(1<<nxt)][nxt] = min(dp[S|(1<<nxt)][nxt], dp[S][prev] + b);
      }
    }
  }
  int ret = INF;
  rep(i,N){
    ret = min(ret, dp[(1<<N)-1][i]);
  }
  cout << ret << endl;
  
  return 0;
}