#include <fstream>
using namespace std;
ifstream fin ("sdo.in");
ofstream fout("sdo.out");

int n,k;
int v[3000001];

void swap(int &x, int &y){
	int aux = x;
	x = y;
	y = aux;
};

int sdo(int ex1,int ex2){
	int x = v[ex1];
	int i = ex1, j = ex2;
	while (i < j){
		for (; v[i] <= x && i < j; ++i);
		for (; v[j] > x && i <= j; --j);
		if (i < j) swap(v[i], v[j]);
	};
	v[ex1] = v[j];
	v[j] = x;
	if (j == k)
		return x;
	if (j < k)
		return sdo(j+1, ex2);
	return sdo(ex1, j-1);

};

int main(){

	fin>>n>>k;
	for (int i = 1; i <= n ; i++)
		fin>>v[i];
	fout<<sdo(1,n);

};