#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <queue>
#include <utility>
using namespace std;

typedef pair<int, int> P;
typedef unsigned long long ll;

const int inf = 999999999;
const int mod = 1000000007;

int dp[1 << 15];

int main(){
	int n, MOD = 1000;
	cin >> n;
	int m[n];
	for(int i = 0; i < n; i++){
		cin >> m[i];
	}
	for(int i = 0; i < (1 << n); i++){
		dp[i] = inf;
	}
	dp[0] = 0;
	for(int S = 0; S < (1 << n); S++){
		int t = 0;
		for(int i = 0; i < n; i++){
			if(S & (1 << i)){
				t += m[i];
			}
		}
		t %= MOD;
		for(int i = 0; i < n; i++){
			if((S & (1 << i)) == 0){
				dp[S | (1 << i)] = min(dp[S | (1 << i)], dp[S] + max(0, m[i] - t));
			}
		}
	}
	cout << dp[(1 << n) - 1] << endl;
	return 0;
}