#include <fstream>
#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <string.h>
#include <queue>
#include <math.h>
#include <set>
#include <stack>

#define min(a,b) ((a<b)?a:b)
#define max(a,b) ((a<b)?b:a)

using namespace std;

//#define TEST
#ifdef TEST
ifstream fin("input.txt");
ofstream fout("output.txt");
#else
ifstream fin("sdo.in");
ofstream fout("sdo.out");
#endif // TEST

int n,m;
int a[3000000];

int main()
{
    fin>>n>>m;
    for (int i=0; i<n; i++)
        fin>>a[i];
    random_shuffle(a,a+n);
    int x;
    nth_element(a,a+m,a+n);
    fout<<a[m-1];
    return 0;
}