#include <fstream>
#include <cstdlib>
using namespace std;
ifstream f("sdo.in");
ofstream g("sdo.out");

int a[3000005],n,k,i;

void qs(int left, int right)
{
    int i=left, j=right, r=a[(i+j)/2];
    while (i<j)
    {
        while (a[i]<r) i++;
        while (r<a[j]) j--;
        if (i<=j) swap(a[i],a[j]), i++, j--;
    }
    int t=(i+j)/2;
    if (t==k) g << a[t], exit(0);
    if (t>k) qs(left,t);
    if (t<k) qs(t,right);
}

int main()
{
    f >> n >> k;
    for (i=1; i<=n; i++)
        f >> a[i];
    qs(1,n);
    return 0;
}