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

class Program
{
	static void Main(string[] args)
	{
		var HN = Console.ReadLine().Split().Select(int.Parse);
		int H = HN.First(), N = HN.Last();
		var A = new int[N - 1];
		for (int i = 0; i < N - 1; i++)
		{
			A[i] = int.Parse(Console.ReadLine());
		}
		var ordered = A.OrderByDescending(item => item).ToArray();
		for (int i = 0; i < N - 1; i++)
		{
			if (H > ordered[i])
			{
				Console.WriteLine(i + 1);
				return;
			}
		}
		Console.WriteLine(N);
	}
}