#include<iostream>
#include<fstream>
using namespace std;
int select_modificat(int k, int n, int M[100])
{
	int min, p, i, j, aux;
	//crescator
	for(i=1;i<=k;i++)
	{
		min = M[i];
		p = i;
		for(j=i+1;j<=n;j++)
		  if(M[j] < min)
		  {
		  	  min = M[j];
		  	  p = j;
		  }
		  aux = M[i];
		  M[i] = min;
		  M[p] = aux;
	}
	return M[k];
}
int main ()
{
	ifstream fin("sdo.in");
	ofstream fout("sdo.out");
	int n, k, M[100];
	fin >> n >> k;
	for(int i=1;i<=n;i++)
	  fin >> M[i];
	  
	fout << select_modificat(k, n, M);
}