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

                              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 <iostream>
#include<bits/stdc++.h>
using namespace std;
int n,k,t[1000001];
int main()
{
    cin>>n>>k;
    for(int i=1; i<=n; i++){
        cin>>t[i];
    }
    sort(t+1,t+n+1);
    /*for(int i=1; i<=n; i++){
        cout<<t[i]<<" ";
    }*/
    int res=k;
    for(int i=n-k; ;i--){
        if(t[i]!=t[n-k+1])
            break;
        else
            res++;
    }
    cout<<res;

    return 0;
}