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#include <bits/stdc++.h>

using namespace std;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(0);
    int numberOfContestants, shirtsToGive;
    cin >> numberOfContestants >> shirtsToGive;
    vector<int> points(numberOfContestants);
    for (int i = 0; i < numberOfContestants; i++) {
        cin >> points[i];
    }
    sort(points.begin(), points.end(), greater<int>());
    int answer = shirtsToGive;
    for (int i = shirtsToGive - 1; i < numberOfContestants; i++) {
        if (i != points.size() - 1 && points[i] == points[i + 1]) {
            answer++;
            continue;
        }
        break;
    }
    cout << answer << endl;
}