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

namespace lecture
{
    class MainClass
    {
        public static void Main(string[] args)
        {

            int L = int.Parse(Console.ReadLine());
            int N = int.Parse(Console.ReadLine());
            int[] W = Console.ReadLine().Trim().Split(' ').Select(x => int.Parse(x)).ToArray();

            Array.Sort(W);

            int sum = 0;

            int count = 0;

            for (int i = 0; i < N;i++ )
            {
                sum = sum + W[i];

                count++;

                if(L < sum)
                {
                    sum -= W[i];
                    count--;

                }
            }

            Console.WriteLine(count);




        }
    }
}