#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <fstream>
#include <queue>
#include <complex>

#define INF 100000000
#define INF_INT_MAX 2147483647
#define INF_LL_MAX 9223372036854775807
#define EPS 1e-10
#define Pi acos(-1)
#define LL long long
#define ULL unsigned long long

using namespace std;

#define MAX_N 16

int N;
int M[MAX_N];
int memo[1 << MAX_N];

void Input(){

	cin >> N;
	for (int i = 0; i < N; i++){
		cin >> M[i];
	}

}

int Solve(int S){
	
	if (S == (1 << N) - 1)
		return 0;

	if (memo[S])
		return memo[S];

	int Sub = 0;
	for (int i = 0; i < N; i++){
		if ((S >> i) & 1)
			Sub += M[i];
	}
	Sub %= 1000;

	int ret = INF;

	for (int i = 0; i < N; i++){
		if (!((S >> i) & 1)){
			ret = min(ret, max(0, M[i] - Sub) + Solve(S | (1 << i)));
		}
	}

	return memo[S] = ret;

}

int main(){

	Input();

	cout << Solve(0) << endl;

	return 0;

}