#include <fstream>
#include <cstdlib>

using namespace std;

const int N = 3e6;

int v[N];

void part_3(int v[], int st, int dr, int &p1, int &p2)
{
    int poz = rand() % (dr - st + 1) + st;
    swap(v[poz], v[dr]);
    p1 = st;
    p2 = dr - 1;
    int i = st;
    while(i <= p2)
    {
        if (v[i] == v[dr])
        {
            i++;
        }
        else if (v[i] < v[dr])
        {
            swap(v[p1++], v[i++]);
        }
        else
        {
            swap(v[p2--], v[i]);
        }
    }
    swap(v[++p2], v[dr]);
}

void quick_sort(int v[], int st, int dr, int p)
{
    if (st >= dr)
    {
        return;
    }
    int p1, p2;
    part_3(v, st, dr, p1, p2);
    if (p < p1)
    {
        quick_sort(v, st, p1 - 1, p);
    }
    if (p2 < p)
    {
        quick_sort(v, p2 + 1, dr, p);
    }
}

void shuffle(int v[], int n)
{
    for (int i = n - 1; i > 0; i--)
    {
        int poz = rand() % (i + 1);
        swap(v[poz], v[i]);
    }
}

int main()
{
    ifstream in("sdo.in");
    ofstream out("sdo.out");
    int n, p;
    in >> n >> p;
    p--;
    for (int i = 0; i < n; i++)
    {
        in >> v[i];
    }
    //shuffle(v, n);
    quick_sort(v, 0, n - 1, p);
    out << v[p] << "\n";
    in.close();
    out.close();
    return 0;
}