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#include <bits/stdc++.h>
using namespace std;
int n,k,a[2003];
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cin>>n>>k;
for(int i=0;i<=n;i++)
	cin>>a[i];
	
sort(a,a+n);
reverse(a,a+n);
int it = k - 1;
while(it < n && a[it] == a[it + 1])
	it++;
cout<<it + 1;
	
return 0;	
}