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#include <bits/stdc++.h>

using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n, k;
    cin >> n >> k;
    
    vector<int> v(n);
    for (int &i : v)
        cin >> i;
    sort(v.begin(), v.end(), greater<int>());
    int pos = k;
    while (pos < n && v[pos] == v[k - 1])
        ++pos;
    cout << pos << '\n';
}