#include<fstream>
#include<algorithm>
using namespace std;
ifstream f("sdo.in");
ofstream g("sdo.out");
int n,h,e[3000002];
int main (){
	f>>n>>h;
	for(int i=1;i<=n;i++)
		f>>e[i];
	nth_element(e+1,e+h,e+n+1);
	g<<e[h];
	return 0;
}