using System;
using System.Linq;

namespace TestConsole
{
    class Program
    {
        static void Main(string[] args)
        {
            var width = int.Parse(Console.ReadLine());
            var count = int.Parse(Console.ReadLine());
            var blocks = Console.ReadLine().Split().Select(i => int.Parse(i)).OrderBy(i=>i);

            for (; count > 0; count--)
            {
                if (blocks.Take(count).Sum() <= width)
                {
                    break;
                }
            }
            Console.WriteLine(count);
        }
    }
}