#include<stdio.h>
#include<algorithm>
#include<vector>
#include<iostream>
using namespace std;

#define NMAX 3000005

int main()
{
	int v[NMAX];
	int length, nr, x;

	freopen("sdo.in", "r", stdin);
	freopen("sdo.out", "w", stdout);

	scanf("%d", &length);
	scanf("%d", &nr);

	for(int i = 0; i < length; ++i)
	{
		scanf("%d", &v[i]);
	}

	nth_element(v, v+nr-1, v + length);

	printf("%d\n", v[nr-1]);

	return 0;
}