using System;
using System.Collections.Generic;
using System.Text;
using System.Linq;

class Program
{
    public void Proc()
    {
        Reader.IsDebug = false;
        int itemCount = int.Parse(Reader.ReadLine());
        for (int i = 0; i < itemCount; i++)
        {
            this.priceList.Add(int.Parse(Reader.ReadLine()));

        }

        int ans = this.GetAns(this.priceList, 0);
        Console.WriteLine(ans);
    }

    private Dictionary<string, int> dic = new Dictionary<string, int>();

    private int GetAns(List<int> target, int nebiki)
    {
        string key = string.Join("#", target);
        if (dic.ContainsKey(key))
        {
            return dic[key];
        }

        if (target.Count == 1)
        {
            return Math.Max(0, target[0] - nebiki);
        }
        int ans = int.MaxValue ;
        for (int i = 0; i < target.Count; i++)
        {
            List<int> subList = new List<int>(target);
            subList.RemoveAt(i);
            ans = Math.Min(ans, this.GetAns(subList, (nebiki + target[i]) % 1000) + (Math.Max(0, target[i] - nebiki)));
        }
        dic.Add(key, ans);
        return ans;
    }

    public List<int> priceList = new List<int>();


    public class Reader
    {
        public static bool IsDebug = true;
        private static String PlainInput = @"
 

5
10000
1000
100
10
1


 
";
        private static System.IO.StringReader Sr = null;
        public static string ReadLine()
        {
            if (IsDebug)
            {
                if (Sr == null)
                {
                    Sr = new System.IO.StringReader(PlainInput.Trim());
                }
                return Sr.ReadLine();
            }
            else
            {
                return Console.ReadLine();
            }
        }

    }
    static void Main()
    {
        Program prg = new Program();
        prg.Proc();
    }
}