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

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var k = int.Parse(line[1]);
        var d = new Dictionary<int, int>();
        line = Console.ReadLine().Trim().Split(' ');
        foreach (var x in line)
        {
            var w = int.Parse(x);
            if (d.ContainsKey(w)) d[w]++;
            else d[w] = 1;
        }
        getAns(k, d);
    }
    static void getAns(int k, Dictionary<int, int> d)
    {
        var count = 0;
        foreach (var x in d.OrderByDescending(x => x.Key))
        {
            if (count + x.Value > k) { Console.WriteLine(count); return; }
            else count += x.Value;
        }
        Console.WriteLine(count);
    }
}