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

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, k;
    cin >> n >> k;
    vector<int> a(n);
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
    }
    sort(a.rbegin(), a.rend());
    for (int i = 0; i < n; ++i) {
        cerr << a[i] << " ";
    }
    cerr << endl;
    while (k < n && a[k - 1] == a[k]) {
        ++k;
    }
    cout << k << endl;
    return 0;
}