#include<bits/stdc++.h>

#define debug(x) cerr << #x << ": " << x << '\n'
#define debugArray(x,n) for(long long hoge = 0; (hoge) < (n); ++ (hoge)) cerr << #x << "[" << hoge << "]: " << x[hoge] << '\n'
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef vector<ll> vll;
const ll INF = INT_MAX;
const ll MOD = 1e9+7;

int main(){
  cin.tie(0);
  ios::sync_with_stdio(false);
  ll N;cin>>N;
  ll M[N];for(ll i=0;i<N;i++)cin>>M[i];
  ll dp[1<<N]={};
  fill(dp,dp+(1<<N),INF);
  dp[0]=0;
  for(ll S=0;S<1<<N;S++){
    ll dis=0;
    for(ll i=0;i<N;i++)if((S>>i)&1){
      dis = (dis+M[i])%1000;
    }
    for(ll i=0;i<N;i++)if(!((S>>i)&1)){
      dp[S|(1<<i)] = min(dp[S|(1<<i)],dp[S]+max(0ll,M[i]-dis));
    }
  }
  cout<<dp[(1<<N)-1]<<endl;
  return 0;
}