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#include <bits/stdc++.h>

using namespace std;


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

        int n, k;  cin >> n >> k;  vector<int> v; for (int i=0; i<n; i++) { int a; cin >> a; v.push_back(-a);}
sort(v.begin(), v.end());
int pos = k-1;
while (pos + 1 < n && v[pos] == v[pos+1]) pos++;
cout << pos + 1 << endl;
}