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

using namespace std;

vector < int > v;

int main()
{
    ifstream f("sdo.in");
    ofstream g("sdo.out");
    int n,x;
    f>>n>>x;
    for(int i=1;i<=n;i++)
    {
        int p; f>>p;
        v.push_back(p);
    }
    nth_element(v.begin(),v.begin()+x,v.end());
    g<<v[x-1]<<'\n';
    f.close();
    g.close();
    return 0;
}