class Program
   {
       static void Main(string[] args)
       {
           string[] nk = Console.ReadLine().Split(' ');
           string[] scoreStr = Console.ReadLine().Split(' ');
           List<int> scoreNum = new List<int>();
           int[] scoreList = new int[401];
           for (int i = 0; i < int.Parse(nk[0]); i++)
           {
               scoreList[int.Parse(scoreStr[i])]++;
               scoreNum.Add(int.Parse(scoreStr[i]));
           }
           scoreNum.Sort();
           int capacity = int.Parse(nk[1]);
           int borderScore = scoreNum[int.Parse(nk[0])-capacity];
           int count = 0;
           Array.Reverse(scoreList);
           for (int i = 0; i < 401; i++)
           {
               if (scoreList[i] == 0)
               {
                   continue;
               }
               if(count + scoreList[i] <= capacity && borderScore <= 400 - i)
               {
                   count += scoreList[i];
               }
               else
               {
                   break;
               }
           }
           Console.WriteLine(count);
       }
   }