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#include <bits/stdc++.h>
using namespace std;
vector <int> v;

int main(){
    ios_base::sync_with_stdio(0);
    int n,k;
    cin >> n >> k;
    for (int i = 1;i <= n;i++){
        int a;
        cin >> a;
        v.push_back(-a);
    }
    sort(v.begin(),v.end());
    for (int i = 0;i < (int)v.size();++i){v[i]*=-1;}
    for (int i = k-1;i < (int)v.size();++i){
        if (v[i] != v[i+1]){
            cout << i+1 << '\n';
            return 0;
        }
    }
    cout << n << '\n';
    return 0;
}