/******************************************************************************

                              Online C++ Compiler.
               Code, Compile, Run and Debug C++ program online.
Write your code in this editor and press "Run" button to compile and execute it.

*******************************************************************************/

#include <bits/stdc++.h>

using namespace std;

int n, k, res;
int t[1000000];
int main()
{
    std::ios_base::sync_with_stdio(0); cin.tie(0);
    cin>>n>>k;
    res= k;
    for(int i=0; i<n;i++){
        cin>>t[i];
        
    }
    sort(t, t+n, greater<int>());
    for(int i=k-1;i<n;i++){
        if(t[i]==t[i+1]) res++;
        else break;
    }
    printf("%d", res);
    return 0;
}