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#include <bits/stdc++.h>

#define DEBUG(x) cout << '>' << #x << ':' << x << endl;
#define fi first
#define se second
#define ll long long
#define ld long double
#define pb push_back
#define vi vector<int>
#define MAXN 100001

using namespace std;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int n, k;
    cin >> n >> k;

    vector<int> V(n);
    for (int i = 0; i < n; i++)
        cin >> V[i];

    sort(V.rbegin(), V.rend());

    int r = k;

    for (int i = k; i < n; i++) {
        if (V[k - 1] == V[i])
            r++;
        else
            break;
    }

	cout<<r<<endl;

    return 0;
}