#include<iostream>
#include<algorithm>
using namespace std;
int a[100000005];
int main()
{
	int n,k;
	scanf("%d %d",&n,&k);
	for(int i=1;i<=n;i++)
	{
		cin>>a[i];
	}
	sort(a+1,a+n+1);
	printf("%d",a[k+1]);
	return 0;
}