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#include <bits/stdc++.h>
#define vt vector
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define F first
#define S second
#define pb emplace_back
#define pii pair <int, int>
typedef long long ll;

using namespace std;

int main() {
	ios_base::sync_with_stdio(0);
	int n, k;
	cin >> n >> k;
	vt <int> v(n);
	for (int i = 0; i < n; i++)
		cin >> v[i];
	sort(all(v), greater <int>());
	int ans = k;
	while(ans < n && v[ans] == v[k - 1]) 
		ans++;
	cout << ans << " \n";
}