#include <fstream>
#include <map>

using namespace std;

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

map <long long, int> m;
int n, k, a;

int main()  {
  fin >> n >> k;
  for (int i = 1; i <= n; ++i)  {
    fin >> a;
    ++m[a];
  }
  for (auto i = m.begin(); i != m.end(); ++i)  {
    k -= i -> second;
    if (k <= 0)  {
      fout << i -> first << '\n';
      return 0;
    }
  }
}