#include<fstream>
#include<time.h>
#include<stdlib.h>
#define Nmax 3000010
using namespace std;
int v[Nmax],K,i,n;

void sdo ( int s, int d )
{
	int i=s,j=d;
	int p = v [ i + rand() % (j-i+1) ];
//	int p = v [ (i+j)>>1 ];	
	
	while(i<j)
	{
		while(v[i]<p) i++;
		while(v[j]>p) j--;
		if(i<j)
			{v[i]^=v[j]; v[j]^=v[i]; v[i]^=v[j];}
	}
	
	if( i == K ) return ;

	if( i > K )  sdo(s,i-1);
		else     sdo(i+1,d);
}	

int main()
{
	srand(time(0));
	
	ifstream f("sdo.in");
	ofstream g("sdo.out");
	
	f>>n>>K;
	
	for(i=1;i<=n;i++)
		f>>v[i];
			
	sdo(1,n);
	g<<v[K];
	
	f.close();
	g.close();	
	return 0;
}