#include <fstream>
#include <set>

using namespace std;

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

int n,k;
multiset <int> heap;

int main()
{
    int i,x;
    in>>n>>k;
    for(i=1;i<=n;i++)
    {
        in>>x;
        heap.insert(x);
    }
    for(i=1;i<k;i++) heap.erase(*heap.begin());
    out<<*heap.begin();
    in.close();
    out.close();
    return 0;
}