#include <fstream>
#include <algorithm>

using namespace std;

int main(int argc, char *argv[])
{
  ifstream fi("sdo.in");
  ofstream fo("sdo.out");
  int n, k;
  fi >> n >> k;
  k--;
  int *v = new int[n];
  for(int i = 0; i < n; i++)
    fi >> v[i];
  nth_element(v, v + k, v + n);
  fo << v[k] << endl;
  fi.close();
  fo.close();
  return 0;
}