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#include <iostream>
#include <vector>
#include <algorithm>

int main() {
    int n, k;
    std::cin >> n >> k;

    std::vector<int> a(n);
    for (int i = 0; i < n; ++i) {
        std::cin >> a[i];
    }
    std::sort(a.rbegin(), a.rend());
    a.push_back(-1);

    while (a[k - 1] == a[k]) {
        k += 1;
    }
    
    std::cout << k << "\n";
}