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#include <bits/stdc++.h>
#define boost ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define debug(x) cerr << #x << " " << x << endl
#define int long long
#define st first
#define nd second

using namespace std;

const int N(2e3 + 13);
const int MAX(LLONG_MAX);

int n, k, res;
bool flag;
string s;
int arr[N];

int32_t main() {
  boost;
  cin >> n >> k;
  for (int i = 1; i <= n; i++) {
    cin >> arr[i];
  }

  res = k;
  sort(arr + 1, arr + 1 + n, greater<int>());
  for (int i = k + 1; i <= n; i++) {
    if (arr[i] == arr[i - 1]) {
      res++;
    } else {
      break;
    }
  }
  cout << res << endl;
}