#include <bits/stdc++.h>
#define syosu(x) fixed<<setprecision(x)
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> P;
typedef pair<double,double> pdd;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<double> vd;
typedef vector<vd> vvd;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<string> vs;
typedef vector<P> vp;
typedef vector<vp> vvp;
typedef vector<pll> vpll;
typedef pair<int,P> pip;
typedef vector<pip> vip;
const int inf=1<<30;
const ll INF=1ll<<60;
const double pi=acos(-1);
const double eps=1e-8;
const ll mod=1e9+7;
const int dx[4]={-1,0,1,0},dy[4]={0,-1,0,1};

int n;
vi a;

int main(){
	cin>>n;
	a=vi(n);
	for(int i=0;i<n;i++) cin>>a[i];
	int S=1<<n;
	vi dp(S,inf);
	dp[0]=0;
	for(int i=0;i<S;i++){
		int t=0;
		for(int j=0;j<n;j++) if(i&1<<j) t+=a[j];
		t%=1000;
		for(int j=0;j<n;j++) if(!(i&1<<j)){
			int I=i+(1<<j);
			dp[I]=min(dp[I],dp[i]+max(0,a[j]-t));
		}
	}
	cout<<dp[S-1]<<endl;
}