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#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pb push_back
#define st first
#define nd second

vector<int> v;

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

	int n, k;
	cin >> n >> k;
	for(int i=0;i<n;i++) {
		int x;
		cin >> x;
		v.pb(-x);
	}
	sort(v.begin(), v.end());
	int r = k;
	for(int i=k;i<n;i++) {
		if(v[i] == v[i-1]) 
			r++;
		else
			break;
	}
	cout << r << "\n";
}