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#include <bits/stdc++.h>

int32_t main()
{
	std::ios_base::sync_with_stdio(false);
	std::cin.tie(NULL);
	std::cout.tie(NULL);

	int n, k;
	std::cin >> n >> k;

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

	std::sort(a.begin(), a.end(), std::greater<int>());

	int result = k;

	int i = k;
	while (i < n && a[i] == a[k - 1]) ++i, ++result;

	std::cout << result << '\n';

	return 0;
}