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#include <algorithm>
#include <iostream>
#include <vector>

using namespace std;

int main() {
  int n, k, s, r;
  ios_base::sync_with_stdio(0);

  cin >> n >> k;

  if (n == k) {
    cout << k << endl;
    return 0;
  }

  auto scores = vector<int>(n);

  for (int i = 0; i < n; i++) {
    cin >> s;
    scores.push_back(s);
  }
  sort(scores.begin(), scores.end(), greater<>());
  s = scores[k - 1];
  for (r = k; r < n && scores[r] == s; r++)
    ;
  cout << r << endl;
  return 0;
}