#include<bits/stdc++.h>
#pragma warning(disable:4996)
using namespace std;
using ll = long long;
static const int INF = 10000000;
int main() {
	int N;
	scanf("%d", &N);
	vector<int>v(N);
	for (int i = 0; i < N; i++) {
		scanf("%d", &v[i]);
	}
	vector<int>dp(1 << N,INF);
	dp[0] = 0;
	for (int bit = 0; bit < (1 << N); bit++) {
		for (int i = 0; i < N; i++) {//次に買う商品
			if (bit&(1 << i))continue;//使用済みなら選び直し
			//int add = -(dp[bit] % 1000) + v[i];
			int teika = 0;//これまで購入した商品の定価
			for (int j = 0; j < N; j++) {
				if (bit & 1 << j)teika += v[j];
			}
			int add = -(teika % 1000) + v[i];
			if (add < 0)add = 0;
			dp[bit | (1 << i)] = min(dp[bit | (1 << i)],dp[bit]+add);
		}
	}
	printf("%d\n", dp[(1 << N) - 1]);
}