using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
//using System.Text;
//using System.Text.RegularExpressions;
//using System.Globalization;
//using System.Diagnostics;
using static System.Console;
//using System.Numerics;
//using static System.Math;
//using pair = Pair<int, int>;

class Program
{
    static void Main()
    {
        //SetOut(new StreamWriter(OpenStandardOutput()) { AutoFlush = false });
        new Program().solve();
        Out.Flush();
    }
    Scanner cin = new Scanner();
    readonly int[] dd = { 0, 1, 0, -1, 0 }; //→↓←↑
    readonly int mod = 1000000007;
    void chmax<T>(ref T a, T b) where T : IComparable<T> { a = a.CompareTo(b) < 0 ? b : a; }
    void chmin<T>(ref T a, T b) where T : IComparable<T> { a = a.CompareTo(b) < 0 ? a : b; }

    void solve()
    {
        int T = cin.nextint;
        int N = cin.nextint;
        var A = new int[N];
        for (int i = 0; i < N; i++)
        {
            A[i] = cin.nextint;
        }

        var dp = new int[1 << N][];
        for (int i = 0; i < 1 << N; i++)
        {
            if (i == 0) dp[i] = new int[N + 1];
            else dp[i] = Enumerable.Repeat(int.MaxValue/ 3, N + 1).ToArray();
        }

        for (int i = 1; i < 1 << N; i++)
        {
            for (int j = 0; j < N; j++)//jを引いて試してみる
            {
                if ((i >> j & 1) == 1)
                {
                    for (int k = 0; k < N + 1; k++)
                    {
                        if (0 < k && dp[i][k - 1] <= T) dp[i][k] = 0;
                        chmin(ref dp[i][k], dp[i ^ (1 << j)][k] + A[j]);
                    }
                }
            }
        }

        for (int i = 0; i < N + 1; i++)
        {
            if (dp[(1 << N) - 1][i] == 0)
            {
                WriteLine(i);
                return;
            }
        }
    }

}

class Scanner
{
    string[] s; int i;
    char[] cs = new char[] { ' ' };
    public Scanner() { s = new string[0]; i = 0; }
    public string[] scan { get { return ReadLine().Split(); } }
    public int[] scanint { get { return Array.ConvertAll(scan, int.Parse); } }
    public long[] scanlong { get { return Array.ConvertAll(scan, long.Parse); } }
    public double[] scandouble { get { return Array.ConvertAll(scan, double.Parse); } }
    public string next
    {
        get
        {
            if (i < s.Length) return s[i++];
            string st = ReadLine();
            while (st == "") st = ReadLine();
            s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);
            i = 0;
            return next;
        }
    }
    public int nextint { get { return int.Parse(next); } }
    public long nextlong { get { return long.Parse(next); } }
    public double nextdouble { get { return double.Parse(next); } }
}