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

int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	
	int n,k,a,ans=0;
	vector <int> t;
	set <int> q;
	set <int>::iterator it;
	
	cin>>n>>k;
	
	for(int i=0;i<n;i++)
	{
		cin>>a;
		t.push_back(a);
		q.insert(a);
	}
	
	sort(t.begin(),t.end());
	
	it=q.end(); it--;

	for(int i=t.size()-1;i>=0;i--)
	{
		//cout<<t[i]<<" "<<*it<<"\n";
		if(t[i]==*it) ans++;
		else 
		{
			if(ans>=k)	break;
	
			it--;
			ans++;
			//cout<<*it<<" "<<t[i]<<"!!\n";
		}
	}
	
	cout<<ans;
	return 0;
}