import java.util.*;

public class Main {
    static int[] prices;
    static int[] dp;
    static int n;
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		n = sc.nextInt();
		prices = new int[n];
		for (int i = 0; i < n; i++) {
		    prices[i] = sc.nextInt();
		}
		dp = new int[1 << n];
		Arrays.fill(dp, -1);
		dp[0] = 0;
		System.out.println(dfw((1 << n) - 1));
	}
	
	static int dfw(int mask) {
	    if (dp[mask] >= 0) {
	        return dp[mask];
	    }
	    dp[mask] = Integer.MAX_VALUE;
	    int total = 0;
	    for (int i = 0; i < n; i++) {
	        if ((mask & (1 <<i)) == 0) {
	            continue;
	        }
	        total += prices[i];
	    }
	    for (int i = 0; i < n; i++) {
	        if ((mask & (1 <<i)) == 0) {
	            continue;
	        }
	        dp[mask] = Math.min(dp[mask], dfw(mask ^ (1 << i)) + Math.max(0, prices[i] - (total - prices[i]) % 1000));
	    }
	    return dp[mask];
	}
}