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#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;

int main() {
    ios::sync_with_stdio(false); cin.tie();
    int n, k; cin >> n >> k;
    vector<int> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    sort(a.begin(), a.end(), greater<int>());
    int cutoff = a[k-1];
    int z = k;
    while (z < n && a[z] == cutoff) z++;
    cout << z << '\n';
}