#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (n);i++)
#define sz(x) int(x.size())
typedef long long ll;
typedef pair<int,int> P;
constexpr int mod = 1000;
constexpr int INF = 1e9;
int main(){
  int n;
  cin >> n;
  vector<int> m(n);
  rep(i,n) cin >> m[i];
  vector<int> dp(1<<n,INF);
  dp[0] = 0;
  for (int bit = 0; bit < (1<<n); bit++) {
    int dis = 0;
    for (int j = 0; j < n; j++) if (bit & (1 << j)) (dis += m[j]) %= mod;
    
    for (int i = 0; i < n; i++) {
      if (bit & (1 << i)) continue;
      dp[bit|(1<<i)] = min(dp[bit|(1<<i)], dp[bit] + max(0, m[i] - dis));
    }
  }
  cout << dp[(1<<n)-1] << endl;
  return 0;
}