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#include <iostream>
#include <fstream>
#include <algorithm>
ifstream fin ("sdo.in");
ofstream fout ("sdo.out");

using namespace std;

int main()
{
    int n, k, a[3000002];
    fin >> n >> k;
    for (int i = 0; i < n; i++)
        fin >> a[i];

    nth_element(a, a+k, a+n);

    fout << a[++k] << "\n";
    return 0;
}