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

int T[2001];

int main () {
	ios_base::sync_with_stdio(0);
	int n, k;
	cin>>n>>k;
	for (int i = 0; i < n; ++i) cin>>T[i];
	sort(T, T+n, greater<int>());
	int j = k-1;
	while (T[k-1] == T[j]) ++j;
	cout<<j;
	return 0;
}