#include <stdio.h>
#include <algorithm>
#include <vector>
using namespace std;
long crt,i,n,m;
vector <long> a;
int main ()
{
	FILE *f, *g;
	f=fopen("sdo.in", "r");
	g=fopen("sdo.out", "w");
	fscanf(f, "%d %d", &n,&m);
	for (i=1; i<=n; i++)
	{
		fscanf(f, "%d", &crt);
		a.push_back(crt);
	}
	sort(a.begin(),a.begin()+n);
	fprintf(g, "%d", a[m-1]);
	fclose(f); fclose(g);
	return 0;
}