/*
    Rescriere OLI 2015
    Start: 10:45
*/

#include    <algorithm>
#include    <iostream>
#include    <fstream>

using namespace std;

ifstream fin("sdo.in");
ofstream fout("sdo.out");

vector < int > V;

void Read()
{
    int N, th, x;
    fin >> N >> th;
    th -= 1;
    for(int i = 1; i <= N; i++)
    {
        fin >> x;
        V.push_back(x);
    }
    nth_element(V.begin(), V.begin() + th, V.end());

    fout << V[th];
}

int main()
{
    Read();
    return 0;
}