#include <bits/stdc++.h>
using namespace std;
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define rep(i,b) FOR(i,0,b)
#define INF mugen
#define dump(x) cerr<<#x<<"="<<x<<endl


using ll = long long;
const ll mod = LLONG_MAX;

int N,M[15],dp[(1<<15)];
int mask;

bool contain(int mask,int pos){
  if((mask&(1<<pos))!=0)return true;
  return false;
}
int main(){
  cin>>N;
  rep(i,N)cin>>M[i];
  memset(dp,0x3f,sizeof(dp));
  dp[0]=0;
  for(int mask=0;mask<(1<<N);mask++){
    for(int i=0;i<N;i++){
      if(!contain(mask,i)){
        int sum=0;
        for(int j=0;j<N;j++){
          if(contain(mask,j))sum+=M[j];
        }
        int plus=max(0,M[i]-(sum%1000));
        dp[mask|(1<<i)]=min(dp[mask|(1<<i)],dp[mask]+plus);
      }
    }
  }
  cout<<dp[(1<<N)-1]<<endl;
}