/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		Scanner sc = new Scanner(System.in);
 
		int n = sc.nextInt();
		int k = sc.nextInt();
 
		int[] arr = new int[n];
		for(int i = 0; i < n; i++)
			arr[i] = sc.nextInt();
 
		Arrays.sort(arr);
		System.out.println(arr[n - k]);
		sc.close();
	}
}

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