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#include "bits/stdc++.h"

using namespace std;

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);

	int n, k;
	cin >> n >> k;

	vector<int> a(n);
	for(auto &element : a)
		cin >> element;

	int res = k;
	sort(a.begin(), a.end(), greater<int>());
	for(int i = k; i < n; i++) {
		if(a[i] == a[k - 1])
			res++;
		else
			break;
	}

	cout << res << "\n";

	return 0;
}