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#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define p_b push_back
#define m_p make_pair
#define fi first
#define se second
 
ll inf = 8000000000000000000;
ll mod = 30000;
const int maxn = 200003;

int main(){
    ios_base::sync_with_stdio(0);
    int n, k; cin>>n>>k;
    vector<int> t(n);
    for(int i = 0; i<n; i++)
        cin>>t[i];

    sort(t.begin(), t.end(), greater<int>());
    int d = 0;
    for(int i = k; i<n && t[i-1]==t[i]; i++)
        d++;

    cout<<k+d;
}